{"title":"BLACK FRIDAY","description":"\u003cp\u003eBLACK FRIDAY SALES ITEMS 11\/21\/2025 - 12\/2\/2025\u003c\/p\u003e","products":[{"product_id":"4-piston-k-series-adjustable-cam-gears","title":"4 Piston K-Series Adjustable Cam Gears","description":"\u003cp\u003e4 Piston K-Series Cam Gears are THE highest quality gears on the market, with an innovative design to help you during the cam degree process. Not only can they be used in the same manner as a traditional cam gear, they also feature alignment holes with an alignment tool that allows you to move it an exact number of degrees, put the pin in to align it, then tighten the bolts. If you want to advance 2 degrees, move the gear 2 on the face, slide the pin in, and it will move exactly 2 degrees.\u003c\/p\u003e\n\u003cp\u003eNot only does this save you time during the cam degree process, you can also offer your customers different settings for their cam centerlines with simple instructions to move to a specific pin location, slide the alignment pin in, and tighten the gears down. It removes any margin of human error and ensures that they get their valve timing events exactly where you asked them to be.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are 4P Gears Better?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eARP fasteners that are larger for increased holding strength\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e175 grams lighter than competitive offerings, but with stronger materials and design\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eInnovative cam degree system where the markings actually mean something\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMADE IN THE USA, with USA Billet Steel\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAvailable as a Single -or- as a Pair\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":32570447593609,"sku":"4PR-Kcamgear","price":425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/4pr.kcamgear2.jpg?v=1763660513"},{"product_id":"4p-s99","title":"4P Peacemaker Jr. *NEW*","description":"\u003cp\u003eThe 4P Peacemaker Jr. CNC Cylinder Head has been a dominant force in All Motor for years, having never lost an HDAY All Motor win since 2018 and never giving up the record.  If you are running something else, you are simply playing for second behind every racer that runs this.  Plain and simple you are going home round 1.  Our competition buys these and removes our logo or blurs them in their videos.\u003c\/p\u003e\n\u003cp\u003eThis head has an evolution over the years, so make sure you get the latest and greatest rendition from 4P.\u003c\/p\u003e\n\u003cp\u003eOfficial ALL MOTOR World Record Holder\u003c\/p\u003e\n\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003eManganese Bronze Valve Guides (16)\u003c\/li\u003e\n\u003cli\u003eOversized Intake Seats (8)\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003cli\u003e4P 37mm Intake Valves (8) \u003c\/li\u003e\n\u003cli\u003e4P Custom Exhaust Valves (8)\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eCopper seats are only recommended for those using Titanium valves.  Otherwise they are not needed.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for 2.5L to 2.7L drag race engines, serious max effort DRAG RACE ONLY!  Over 440whp Capable on stock stroke!\u003c\/li\u003e\n\u003cli\u003eThe benchmark All Motor Race Head that everyone tries to copy!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMANY cars have run 9.2 and 149 mph on M1 with this head...not 1....MANY\u003c\/li\u003e\n\u003cli\u003eETs and race wins backed up by our many customers regardless of chassis or tuner.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e13 HDAY All Motor Titles have been won by Super99\/PM Jr powered race cars.\u003c\/li\u003e\n\u003cli\u003eFits PRB, PPA, and PPL Cylinder Head Castings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e412+ CFM @ .650\" lift and 15hp over the competition's best\u003c\/li\u003e\n\u003cli\u003eExclusive 4P custom 37mm Intake Valve that is lighter than the competition's smaller valves, flows more air, and makes more power.\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design and 4P proprietary valve produces 7-9hp over the competition\u003c\/li\u003e\n\u003cli\u003eSlow-cut precision 5-axis cnc porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003eFull length bronze manganese guide for valve stability.\u003c\/li\u003e\n\u003cli\u003eOur intake port has very little turbulence and proper velocity when compared to our competitors. You can hear the difference on the bench!\u003c\/li\u003e\n\u003cli\u003eYears in testing and development with PROVEN back to back results and records to show for it.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAll heads require a core! You can send us your head, or purchase one from us at the current market price.\u003c\/strong\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471316095113,"sku":"4P-PMjr-Include-Intake(37mm)(F6980)\/Exhaust(30mm\/55)(F6071)-Valves","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/k20.1_1.jpg?v=1763661223"},{"product_id":"4p-gsr","title":"4P Outlaw V2 GSR CNC Head","description":"\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eOutlaw V2 - More CFM, More Horsepower\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e4P CNC heads make significantly more power, AND last up to 3 times longer than the competition. That is what our cylinder head program is all about...pumping out the biggest horsepower, keeping it responsive, and doing so with increased longevity. With a high power turbo car, your biggest battle is dealing with extreme exhaust temperatures. Our heads have design features that pull heat away from the valve and improve reliability on the street and race track.\u003c\/p\u003e\n\u003cp\u003e4P Cylinder Heads hold more world records than all others combined.  SFWD World Record at 1400hp, Outlaw FWD World Record at 2000hp, AWD World Record, Outlaw AWD World Record.\u003c\/p\u003e\n\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003eOEM or Bronze valve guides available\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOutlaw Turbo, Hot Rod\u003c\/li\u003e\n\u003cli\u003eStreet and Outlaw All Motor\u003c\/li\u003e\n\u003cli\u003eRoad Race\u003c\/li\u003e\n\u003cli\u003eE85, Methanol, Gasoline\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSlow-cut precision 5-axis cnc porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003eFull length bronze manganese guide for valve stability\u003c\/li\u003e\n\u003cli\u003eHigh velocity intake port design\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design.\u003c\/li\u003e\n\u003cli\u003eEasy to own port design that moves air fast!\u003c\/li\u003e\n\u003cli\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/li\u003e\n\u003cli\u003e300+CFM on stock size valve\u003c\/li\u003e\n\u003cli\u003e320 CFM on +1mm valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eAll heads require a core! You can send us your head, or purchase one from us at the current market price.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471316258953,"sku":"4P-GSR","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/img_8766.jpg?v=1605486279"},{"product_id":"pro-h22","title":"4P Pro H22 CNC Head","description":"The CNC Ported Pro H22 cylinder head is perfect for your street\/race all motor car or your high power turbo car.  If you are building a large displacement maximum effort all motor drag race car, you should consider the Outlaw 370 H22 Head.\n\nThe world's fastest and most powerful H22 is powered by a 4P Pro H22 CNC Cylinder Head.  35 or 36mm valve is available for this head on the stock intake seat, at the same price.  This head flows up to 360 CFM in that configuration.\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003eOEM or optional Bronze valve guides\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll Motor Street\/Race\u003c\/li\u003e\n\u003cli\u003eOutlaw Turbo\u003c\/li\u003e\n\u003cli\u003eTurbo Street\u003c\/li\u003e\n\u003cli\u003eRoad Race\u003c\/li\u003e\n\u003cli\u003eSuitable for 2.0-2.4L Road Race engines with a broad powerband in mind\u003c\/li\u003e\n\u003cli\u003eSuitable for 2.4-2.7L Drag Race engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSlow-cut precision 5-axis cnc porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003e45 degree valve job designed for long life and durability.\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design with up to 25cfm over our competition.\u003c\/li\u003e\n\u003cli\u003eIntake port features a laid out short turn for superior air speed around the valve when compared to conventional tall short turn port designs.\u003c\/li\u003e\n\u003cli\u003eFull length bronze manganese valve guide for valve stability.\u003c\/li\u003e\n\u003cli\u003ePort walls are left extra thick for high boost applications.\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eAll heads require a core! You can send us your head, or purchase one from us at the current market price.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471316357257,"sku":"Pro-H22","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/proh22intake.jpg?v=1700323449"},{"product_id":"pro-s2k","title":"4P Pro S2K CNC Head","description":"\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOEM Guides left in for porting \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff6600;\"\u003eNO VALVES\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePro All Motor, All Motor Street\u003c\/li\u003e\n\u003cli\u003eHigh horsepower turbo and supercharged applications 500-1500+hp\u003c\/li\u003e\n\u003cli\u003eUSAC Midget\u003c\/li\u003e\n\u003cli\u003eHigh horsepower open class Road Race\u003c\/li\u003e\n\u003cli\u003eIf you are competitively racing and you are running one of our competitor's heads, make the switch and let the results do the talking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSlow-cut precision 5-axis cnc porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003eCustom intake valve that dramatically outperforms other off-the-shelf valves and weights up to 6 grams less per valve.\u003c\/li\u003e\n\u003cli\u003eFull length bronze manganese guide for valve stability.\u003c\/li\u003e\n\u003cli\u003eOur intake port has very little turbulence and great velocity when compared to our competitors. You can hear the difference on the bench!\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design up to 40cfm better than the competition.\u003c\/li\u003e\n\u003cli\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eAll heads require a core! You can send us your head, or purchase one from us at the current market price.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471316390025,"sku":"Pro-S2K","price":1450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/s2000_1.jpg?v=1637355529"},{"product_id":"4pr-cam-rr4","title":"4 Piston Racing RR4 Road Race Camshaft (K-Series)","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\" mce-data-marked=\"1\"\u003e\u003cstrong\u003eIN STOCK\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an aggressive road race cam that offers a huge and broad powerband that will pull a car off the corner at 2500 rpm if required, but carry power aggressively beyond 9000 rpm.  This camshaft was specifically designed for our 2.4L and 2.5L road race engine program to allow for a tame and mild idle that keeps some OEM drivability, but has an aggressive transition into VTEC where the engine should be raced.  The goal is for the driver to race the car on the race cam, but should you drop rpm through a corner, you aren't dead in the water.  The primary lobes will pull the car back up into the powerband and keep you in the race.\u003c\/p\u003e\n\u003cp\u003eThis cam is designed for 2.4L or larger engines with more than 12:1 compression.  It is not a big duration drag race cam, but will produce broad power and acceleration that will not leave you disappointed should you take your street or RR car down the 1320.  9 and low 10 second all motor 1\/4 mile times have been achieved on this road race cam.  This is not for stock stroke K20 engines.  If you have a K20, please use our RR3 camshaft.\u003c\/p\u003e\n\u003cp\u003eIntake Lift - 0.595\"\u003cbr\u003eIntake Duration - 266 @ 0.050\"\u003cbr\u003eExhaust Lift - 0.550\"\u003cbr\u003eExhaust Duration - 260 @ 0.050\"\u003cbr\u003e\u003cbr\u003e**special order available in single lobe for VTEC Killer setups**\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Valve Spring:\u003c\/b\u003e\u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003e4P High Performance Street Valve Spring Kit - \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eGOOD OPTION\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e4P Advanced Performance RACE Valve Spring Kit - \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBEST OPTION\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFerrea Drag Race (shimmed 0.030\") - Light Duty Road Race\/Drag Race\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSupertech H1021D - Light Duty Road Race\/Drag Race\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e4 Piston 1001K PSI Pro Stock - Heavy Duty Race, light weight, long lasting, high rpm\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOther springs kits and brands may be suitable. This is our best recommendation.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Rocker Arm:\u003c\/b\u003e\u003cbr\u003eOEM Honda Rocker Arm\u003cbr\u003eFerrea single roller rocker can be used with a special order VTEC Killer single lobe\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e4 Piston camshafts are Made in the USA from tool steel billet cores, by experts with over 50 years of camshaft design expertise. These cams are not only designed to make good power, but they are designed to promote long timing chain and tensioner life and proper valvetrain harmonics using the latest in camshaft design software.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Cams Only - No Spring Kit","offer_id":34471497564297,"sku":"4PR-CAM-RR4-3LOBE","price":995.0,"currency_code":"USD","in_stock":true},{"title":"Add 4P High Performance Street Spring Kit","offer_id":34471497597065,"sku":"4PR-CAM-RR4-singlelobe","price":1394.0,"currency_code":"USD","in_stock":true},{"title":"Add 4P Advanced Performance Race Spring Kit","offer_id":43143861469321,"sku":"","price":1484.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/602A1731.jpg?v=1764861456"},{"product_id":"4pr-cam-rr3","title":"4 Piston Racing RR3 Road Race Camshaft (K-Series)","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\" mce-data-marked=\"1\"\u003e\u003cstrong\u003eIN STOCK\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis camshaft was specifically designed for our 2.0L road race engine program. The primary lobes allow for a mild idle and tame drivability, but with significant gains over stock.  You will experience a smooth transition into VTEC but the engine comes to life once it is on the big cam.  You are able to run significant intake cam advance where desired.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis cam also works great on stock block K24 engines, where it can produce 30hp gains on stock engines.  It can produce over 300whp on 2.4L engines, but would be considered a mild low maintenance cam for that application. \u003c\/p\u003e\n\u003cp\u003eIntake Lift - 0.533\"\u003cbr\u003eIntake Duration - 260 @ 0.050\"\u003cbr\u003eExhaust Lift - 0.513\"\u003cbr\u003eExhaust Duration - 260 @ 0.050\"\u003cbr\u003e\u003cbr\u003e**special order available in single lobe for VTEC Killer setups**\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Valve Spring:\u003c\/b\u003e\u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003e4P High Performance Street Valve Spring Kit - \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eGOOD OPTION\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e4P Advanced Performance RACE Valve Spring Kit - \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBEST OPTION\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFerrea Drag Race (shimmed 0.030\") - Light Duty Road Race\/Drag Race\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSupertech H1021D - Light Duty Road Race\/Drag Race\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e4 Piston 1001K PSI Pro Stock - Heavy Duty Race, light weight, long lasting, high rpm\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOther springs kits and brands may be suitable. This is our best recommendation.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Rocker Arm:\u003c\/b\u003e\u003cbr\u003e OEM Honda Rocker Arm\u003cbr\u003eFerrea single roller rocker can be used, but this cam is best suited for 3 lobe iVTEC orientation.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e4 Piston camshafts are Made in the USA from tool steel billet cores, by experts with over 50 years of camshaft design expertise. These cams are not only designed to make good power, but they are designed to promote long timing chain and tensioner life and proper valvetrain harmonics using the latest in camshaft design software.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Cams Only - No Spring Kit","offer_id":43143860781193,"sku":"4PR-CAM-RR3","price":995.0,"currency_code":"USD","in_stock":true},{"title":"Add 4P High Performance Street Spring Kit","offer_id":43143853113481,"sku":"4PR-CAM-RR3\/","price":1394.0,"currency_code":"USD","in_stock":true},{"title":"Add 4P Advanced Performance Race Spring Kit","offer_id":43143853146249,"sku":"4PR-CAM-RR3","price":1484.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/RR3.jpg?v=1763664680"},{"product_id":"4pr-cam-otb","title":"4 Piston Racing Outlaw Turbo Camshaft (K-Series)","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eIN STOCK\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a moderate lift and short duration camshaft that was designed for turbocharged engines, from 600 up to 1000+hp. This cam is made to order and takes 2-3 weeks to complete.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Valve Spring:\u003c\/b\u003e\u003cbr\u003e4P High Performance Street Valve Spring Kit - \u003cstrong\u003eGOOD OPTION\u003c\/strong\u003e\u003cbr\u003e4P Advanced Performance RACE Valve Spring Kit - \u003cstrong\u003eBEST OPTION\u003c\/strong\u003e\u003cbr\u003eFerrea Drag Race (shimmed 0.030\") - Light Duty Road Race\/Drag Race\u003cbr\u003eSupertech H1021D - Light Duty Road Race\/Drag Race\u003cbr data-mce-fragment=\"1\"\u003e 4 Piston 1001K PSI Pro Stock - Heavy Duty Race, light weight, long lasting, high rpm\u003cbr\u003e Other springs kits and brands may be suitable. This is our best recommendation.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Rocker Arm:\u003c\/b\u003e\u003cbr\u003e Ferrea Aluminum Roller Rocker for single lobe\u003cbr\u003e OEM Honda Rocker Arms for 3 lobe and single lobe\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e4 Piston camshafts are Made in the USA from billet cores, by experts with over 50 years of camshaft design expertise. These cams are not only designed to make good power, but they are designed to promote long timing chain and tensioner life and proper valvetrain harmonics using the latest in camshaft design software.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"iVTEC 3 Lobe","offer_id":34523899297929,"sku":"4PR-CAM-OTB-3Lobe","price":995.0,"currency_code":"USD","in_stock":true},{"title":"VTEC Killer","offer_id":34523899330697,"sku":"4PR-CAM-OTB-Killer","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/rr3.3.jpg?v=1764861516"},{"product_id":"kshortblock_street","title":"K-Series STREET Short Block","description":"\u003cp\u003e4 Piston Racing Short block assembly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChamfer and debur all sharp edges and oil galleys, chamfer bearing housings and bottom of cylinder bore\u003c\/li\u003e\n\u003cli\u003eHigh pressure thorough cleaning of oil galleys in block and crankshaft\u003c\/li\u003e\n\u003cli\u003eMic pistons and verify straight bore with precision Sunnen bore gauge, set piston to wall clearance for your application\u003c\/li\u003e\n\u003cli\u003eSet ring gap for specific application\u003c\/li\u003e\n\u003cli\u003eBalance rotating assembly\u003c\/li\u003e\n\u003cli\u003eSet bearing clearances\u003c\/li\u003e\n\u003cli\u003eRace preparation and debur to piston dome\u003c\/li\u003e\n\u003cli\u003ePrecision assembly in clean room\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWe build each engine to suit individual racing application... Drag race, road race, hill climb, street use, etc.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eComponents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Sleeve Block\u003c\/b\u003e - Diamond honed with torque plate for straightness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Honda Crank\u003c\/b\u003e - OEM Forged Honda Crankshaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCallies Compstar\u003c\/b\u003e - Callies H-Beam Connecting Rods.\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eCurrent Promotion: Upgrade to Saenz S-Series Connecting Rods at NO CHARGE\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWiseco Shelf Stock Pistons\u003c\/b\u003e - Wiseco Shelf Stock Piston in any compression ratio and any bore up to 88mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eACL Race Bearings\u003c\/b\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOptions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade Connecting rods\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePorted Type S Oil Pump - The OEM Type S pump works great for motors that turn up to 9000 rpm. Past that, the pump can cavitate. We modify brand new OEM pumps for use up to 11,000 rpm. Skip the big cost and installation challenges of a modified S2000 pump in favor of this effective and more affordable option.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471320027273,"sku":"Kshortblock_street","price":2880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/kstreetshortblock1.jpg?v=1606838727"},{"product_id":"4pr-bpump","title":"4P Ported B-Series Oil Pump","description":"\u003cp\u003eThe stock oil pump is a great piece for up to 9,000 rpm in drag racing and 8,000 rpm in endurance racing. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. Our ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested as high as 12,000 rpm with great success. We start with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow. The pumps are then cleaned, oiled, reassembled and repackaged. This part is cheap insurance to protect your multi-thousand dollar investment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFits all B-Series Engines!\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAdd a 4P Rooster Ring to help with the install! Simply slide the Rooster Ring onto the crank snout, then slide the oil pump over it into place.  It perfectly centers the pump, expands the lip seal and keeps it in the proper orientation helping it slide perfectly onto the crank.  No more fighting it.  Once you use it, you'll praise how this simple tool can make such a big difference.\u003c\/em\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":39967623053449,"sku":"4PR-BPUMP","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/b_oil_pump.jpg?v=1763660079"},{"product_id":"outlaw-evox","title":"4P Outlaw EVO X CNC Head","description":"\u003cp\u003eThe highly anticipated 4P Outlaw EVO X CNC cylinder head is here!  This is THE best cylinder head on the market for your EVO X with regards to performance and machining quality. We have put countless hours of development and tested against all others on the market to bring you the best performing cylinder head whether you are endurance racing or drag racing.  We build these heads to compliment your engine, whether that be a 2.3L small turbo broad powerband car, or a 2.0L high rpm drag race car.\u003c\/p\u003e\n\u003cp\u003e4P EVO X heads power THE fastest cars in the world.\u003c\/p\u003e\n\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003eOEM valve guides or optional bronze valve guides\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRoad Race, Time Attack, Auto X\u003c\/li\u003e\n\u003cli\u003eDrag Race\u003c\/li\u003e\n\u003cli\u003eStreet use and daily driving\u003c\/li\u003e\n\u003cli\u003eGasoline, E85, Ethanol, Methanol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e350+ CFM airflow, more than 60 CFM improvement\u003c\/li\u003e\n\u003cli\u003e20+ CFM over the competition lifting the valve with popular camshaft grinds and 30+cfm over the competition for race cam applications.\u003c\/li\u003e\n\u003cli\u003eSlow-cut precision 5-axis cnc porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003eFull length bronze manganese guide for valve stability\u003c\/li\u003e\n\u003cli\u003eHigh velocity intake port design\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design that outflows other heads...even those with larger valves!  Boost response on gear changes that will SET YOU BACK!!\u003c\/li\u003e\n\u003cli\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/li\u003e\n\u003cli\u003eOptional Super Alloy valves are a hybrid incoloy that are 5 times the tensile strength of an Inconel valve, less weight, and have better heat management properties. These valves have memory to return to their original shape as they cool.\u003c\/li\u003e\n\u003cli\u003eOptional PAC Enhanced valve springs are made in the USA and have gone through anti-fatigue processes for longer life and better valve control than the competition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cb\u003eAll heads require a core! Right now we are unable to effectively source good used cores, and we cannot get new cores from Mitsubishi.  You have to send your head in for porting.  Sorry for the inconvenience.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e*If you are sending your head in for porting, please send your buckets and camshafts so that we can set lash*\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471321829513,"sku":"outlaw-evox","price":1650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/sam_4234.jpg?v=1668796669"},{"product_id":"4pr-hpump","title":"4P Ported H22 Oil Pump","description":"\u003cp\u003eThe stock oil pump is one of the weak links in your H22 engine.  These pumps cavitate and lose pressure at high rpm and especially when oil temperatures rise in endurance applications.  Our ported pump increases flow and eliminates cavitation to resolve these shortcomings. We start with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow. The pumps are then cleaned, oiled, reassembled and repackaged. This part is cheap insurance to protect your multi-thousand dollar investment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471321960585,"sku":"4PR-HPUMP","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/h22pump.jpg?v=1763659998"},{"product_id":"proh22blackfridaypromo","title":"4P Pro H22 CNC Cylinder Head Promo","description":"\u003cp\u003ePro H22 CNC Cylinder Head\u003c\/p\u003e\n\n\u003cp\u003eIncludes cylinder head core.  There is no need to send in your core.\u003cbr\u003e\n360 CFM +1 Port Optional at No Extra Charge\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Customer Supplied","offer_id":44950315171977,"sku":null,"price":1195.0,"currency_code":"USD","in_stock":true},{"title":"4Piston Supplied","offer_id":44950314090633,"sku":"ProH22blackfridayPROMO","price":1595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/IMG_3061.jpg?v=1763753983"},{"product_id":"toolpack1","title":"4 Piston Tool Pack - All 4","description":"\u003cp\u003e4 Piston Tool Pack\u003c\/p\u003e\n\u003cp\u003e1 - Deck Bridge\u003c\/p\u003e\n\u003cp\u003e1 - Valve Spring Micrometer\u003c\/p\u003e\n\u003cp\u003e1 - Valve Seal Installation Tool\u003c\/p\u003e\n\u003cp\u003e1 - Ring Squaring Tool\u003c\/p\u003e\n\u003cp\u003eMADE IN THE USA \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe econo gauges that we sell work perfectly fine for taking a piston to deck measurement.  Don't feel that you need to spend $200 on the Fowler...the Econo works great.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Purple \/ No Gauges","offer_id":34523913486473,"sku":"ToolPACK1-Purple-NoGauges","price":305.0,"currency_code":"USD","in_stock":false},{"title":"Purple \/ Econo Gauges","offer_id":34523913519241,"sku":"ToolPACK1-Purple-Econo","price":370.0,"currency_code":"USD","in_stock":false},{"title":"Purple \/ Fowler Gauges","offer_id":34523913552009,"sku":"ToolPACK1-Purple-Fowler","price":520.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/602A8140.jpg?v=1771946638"},{"product_id":"4p-outlawd16","title":"4P Outlaw D16 CNC Head","description":"\u003cp\u003eThe 4P Outlaw D16 CNC cylinder head brings a new level of quality and performance to Honda D16 engine enthusiasts and racers.  This is a highly developed port design that excels where others fall short.  The 4P D16 head not only carries huge CFM gains at high lift, it also carries big flow gains in low lift areas.  This is critical for many D16 owners that are running smaller lift camshafts.  Other heads that were tested showed 25-30 cfm gains at .500 lift, but they lost significant flow below .350.  The 4P head doubles their CFM gains up top and shows big gains in flow at ALL lift points bottom to top.\u003c\/p\u003e\n\u003cp\u003e4P sets the cylinder head up for your application whether it is all motor or forced induction.  Our cylinder head program is all about pumping out the biggest horsepower, keeping it responsive, and doing so with increased longevity.\u003c\/p\u003e\n\u003cp\u003e4P Cylinder Heads hold more world records than all others combined.\u003c\/p\u003e\n\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003eOEM or Bronze valve guides available\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStreet and SFWD\/Outlaw Turbo Race\u003c\/li\u003e\n\u003cli\u003eStreet and Outlaw All Motor\u003c\/li\u003e\n\u003cli\u003eRoad Race\u003c\/li\u003e\n\u003cli\u003eE85, Methanol, Gasoline\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff0000;\"\u003eD16Z6 and D16Y8 available\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSlow-cut precision 5-axis cnc porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003eFull length bronze manganese guide for valve stability\u003c\/li\u003e\n\u003cli\u003eHigh velocity intake port design\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design.\u003c\/li\u003e\n\u003cli\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/li\u003e\n\u003cli\u003e260+ CFM on stock size valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eAll heads require a core! You can send us your head, or purchase one from us at the current market price.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471323140233,"sku":"4P-OutlawD16","price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/d16z6-4.jpg?v=1605485616"},{"product_id":"s2-billetcoverk24","title":"4 Piston Skunk2 K24 Billet Timing Chain Cover","description":"\u003cp\u003eIntroducing the 4 Piston Racing \/ Skunk2 Racing collaboration Billet Timing Chain cover.  Ever since Skunk2 released these we have loved to use them on our engines.  They look great and they make life easy on the dyno and at the racetrack when servicing your engine.  This is a product that Skunk2 innovated, and others have copied.  We like to honor and respect someone's innovation, so we collaborated with Skunk2 on this cover so that your Billet Side cover can say 4 Piston Racing and have a 4P tensioner cover.  Some of the new features include a built-in lower chain guide and an o-ring seal between the top and bottom sections.\u003c\/p\u003e\n\u003cp\u003eIntroduced over a decade ago, the Skunk2 is ‘The Original’ K-Series Billet Timing Chain Cover. Each cover is CNC machined from billet 6061 aluminum and features a two-piece design which facilitates easy timing gear access and cylinder head removal. The multi-piece design allows each cover to easily be surfaced to fit engines with reduced head and deck heights. The interface between the upper and lower covers is sealed using an O-ring gasket set in a machined groove.\u003c\/p\u003e\n\u003cp\u003eThe Skunk2 Timing Chain Cover features an oversized access door for easy timing chain tensioner access, as well as an integrated chain-guide that prevents the chain from jumping teeth and losing its index position when cams or the head is removed. Additionally, the Skunk2 timing chain cover is 14% (10oz) lighter in weight than the OE timing cover.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Machined from 6061 Aluminum Billet\u003c\/li\u003e\n\u003cli\u003e2-Piece Modular Design for Quick and Easy Access\u003c\/li\u003e\n\u003cli\u003e14% Weight Savings over OEM Cover\u003c\/li\u003e\n\u003cli\u003eTiming Chain Guide Integrated into the Design\u003c\/li\u003e\n\u003cli\u003eOversized Timing Chain Tensioner Access Door\u003c\/li\u003e\n\u003cli\u003eStainless Steel Mounting Hardware Included\u003c\/li\u003e\n\u003cli\u003eOEM Fitment; No Modifications Required\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471323631753,"sku":"P681-05-5211","price":375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/4PBilletK24sidecover1.jpg?v=1668019083"},{"product_id":"k20c1-typer-shortblock","title":"K20C1 Type R Short Block","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eThese blocks are IN STOCK right now and ship right away if you select our core.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e4 Piston Racing Short block assembly:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChamfer and debur all sharp edges and oil galleys, chamfer bearing housings and bottom of cylinder bore\u003c\/li\u003e\n\u003cli\u003eHigh pressure thorough cleaning of oil galleys in block and crankshaft\u003c\/li\u003e\n\u003cli\u003eMic pistons and verify straight bore with precision Sunnen bore gauge, set piston to wall clearance for your application\u003c\/li\u003e\n\u003cli\u003eSet ring gap for specific application\u003c\/li\u003e\n\u003cli\u003eBalance rotating assembly\u003c\/li\u003e\n\u003cli\u003eSet bearing clearances\u003c\/li\u003e\n\u003cli\u003eRace preparation and debur to piston dome\u003c\/li\u003e\n\u003cli\u003ePrecision assembly in clean room\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWe build each engine to suit individual racing application... Drag race, road race, hill climb, street use, etc.  This is used in our 750whp Civic Type R.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eComponents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Sleeve Block\u003c\/b\u003e - Diamond honed with torque plate for straightness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Honda Crank\u003c\/b\u003e - OEM Forged Honda Crankshaft.\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e4P I-Beam Connecting Rods\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e4P Wiseco Piston\u003c\/b\u003e - 86mm bore, custom sizes available\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eACL Race Bearings\u003c\/b\u003e \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471323730057,"sku":"K20C1-TypeR-Shortblock","price":3950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/k20c1.1_4_63932a7f-aebf-4432-9d80-1548ea82ef31.jpg?v=1743432418"},{"product_id":"4pk20chead2","title":"4P K20C1 Type R CNC Race Cylinder Head","description":"\u003cp\u003eMatching the proper cylinder head and induction to your application is critical in the K20C1 turbo engine program. This is a very responsive engine at low rpm, and Honda carries this power up towards 7000 rpm. The 4 Piston Racing CNC Ported Cylinder Head is for the enthusiast that is looking to improve efficiency and power delivery over the factory Honda engine. This head has proven to improve spool of the stock turbo, allowing it to come in even earlier than the stock tumble port! This cylinder head will allow the same power to be made at less boost pressure and more power to be made once your system is maximized. Peak output is still limited by the OEM fuel system and turbo if you are still using them, and IF you max those both out. This cylinder head improves performance, and really gives you a solid platform to move into a larger turbo and more RPM in the future.  CFM output is Nearly Doubled.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe exhaust port is modified to increase flow and lower backpressure when used with a larger turbo, however it is not ported in areas that are prone to cracking with high exhaust heat.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOverall streetability and fuel economy is maintained with this head. We have removed the tumble port design in favor of a more conventional 4 valve performance cylinder head orientation, but the overall dimensions and port volume has been kept the same as to maintain the broad RPM range performance of the mighty K20C1 engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eJet Wash and Soda Blast\u003c\/li\u003e\n\u003cli\u003eCrack check and inspection\u003c\/li\u003e\n\u003cli\u003eCNC Porting of Intake and Exhaust ports (CFM is drastically improved!!)\u003c\/li\u003e\n\u003cli\u003eNewen CNC single point performance valve job\u003c\/li\u003e\n\u003cli\u003eSurface\u003c\/li\u003e\n\u003cli\u003eAssembly\u003c\/li\u003e\n\u003cli\u003eThis pricing is based on you sending your head in for porting and service. If you would like to purchase a new OEM Honda Cylinder Head Assembly for us to port, then select that option below.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstall Ferrea Competition Plus Valves and a Ferrea Valve Spring Kit for added durability at high rpm, and the ability to handle much more exhaust temperature than the stock valve. OEM Valvetrain failures have been documented with continued use at high rpm in endurance racing applications or during missed shifts.\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471324057737,"sku":"4PK20Chead2","price":1450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/k20c1.11_1.jpg?v=1605484487"},{"product_id":"saenzsseries","title":"Saenz S-Series Connecting Rods","description":"\u003cp\u003eSaenz S-Series Connecting Rods are made from 100% USA steel of the best quality.  The S-Series rods are the perfect combination of performance and affordability.  As with all Saenz rods, these undergo a rigorous quality inspection process and offer the best quality machine work.\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Honda K20","offer_id":34524811526281,"sku":"SaenzSseries-1","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda K24","offer_id":34524811559049,"sku":"SaenzSseries-2","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda\/Acura GSR","offer_id":34524811591817,"sku":"SaenzSseries-3","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda Acura B18B\/B LS\/B20","offer_id":34524811624585,"sku":"SaenzSseries-4","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda B16A","offer_id":42449160437897,"sku":"","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda K20C1 Type R","offer_id":42449160470665,"sku":"SS-HFK-A00-T","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda L15","offer_id":42449160503433,"sku":"","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda D16 Short","offer_id":42449160536201,"sku":"","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Honda D16 Long","offer_id":42449160568969,"sku":"","price":699.0,"currency_code":"USD","in_stock":true},{"title":"EVO 4G63","offer_id":42449160601737,"sku":"","price":699.0,"currency_code":"USD","in_stock":true},{"title":"EVO X","offer_id":42449160634505,"sku":"","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Subaru WRX FA20","offer_id":42449160667273,"sku":"","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Subaru EJ257","offer_id":42449160700041,"sku":"","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/saenzs-series_3_f350ae96-8aff-4acd-984d-4a5df2c0d63f.jpg?v=1605508658"},{"product_id":"saenzpseries4340","title":"Saenz 4340 Performance Series Connecting Rods","description":"\u003cp\u003eSaenz rods are polished and shot-peened before final dimensional finishing of the overall thickness and bore sizing. Polishing relieves stresses incurred on the material from the machining process and shot-peening creates an external hardened layer that enhances the rods overall performance. These processes also increase the rods useful life and can be used as an indicator of excessive stresses on the rods after being used.\u003c\/p\u003e \n\n\u003cp\u003eWe recommend these rods for use up to 800hp forced induction, and are also very good rods for your naturally aspirated endurance engine.\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Honda K20","offer_id":34524835381385,"sku":"SaenzPseries4340","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Honda K24","offer_id":34524835414153,"sku":"SaenzPseries4341","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Honda\/Acura GSR","offer_id":34524835446921,"sku":"SaenzPseries4342","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Honda\/Acura B18B","offer_id":42449154932873,"sku":"","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Honda B16A","offer_id":42449154965641,"sku":"","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Honda K20C1 Type R","offer_id":42449154998409,"sku":"PS-HFK-A00-T","price":875.0,"currency_code":"USD","in_stock":true},{"title":"Honda L15","offer_id":42449152016521,"sku":"","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Honda D16 Short","offer_id":42449152049289,"sku":"","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Honda D16 Long","offer_id":42449152082057,"sku":"","price":839.0,"currency_code":"USD","in_stock":true},{"title":"EVO 4G63","offer_id":34524835479689,"sku":"SaenzPseries4343","price":839.0,"currency_code":"USD","in_stock":true},{"title":"EVO X","offer_id":34524835512457,"sku":"SaenzPseries4344","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Subaru WRX FA20","offer_id":42449152114825,"sku":"","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Subaru EJ257","offer_id":42449152147593,"sku":"","price":839.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/saenzperformance.jpg?v=1605509204"},{"product_id":"saenzwisecopromo","title":"Saenz Rod and Wiseco Piston COMBO PROMOTION","description":"\u003cp\u003eFull Set of Any shelf Wiseco Piston of your Choice with Rings and Pins. \u003cbr\u003eA Full Set of Saenz S-Series Connection Rods\u003c\/p\u003e\n\u003cp\u003eChoose options from the menu.\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471357153417,"sku":"SAENZWISECOPROMO","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/IGblackfriday.saenzwiseco.22.jpg?v=1764862263"},{"product_id":"4p-kpump","title":"4P PORTED K-SERIES Type S OIL PUMP K20\/K24","description":"\u003cp\u003e\u003cspan style=\"color: #2b00ff;\" mce-data-marked=\"1\"\u003e\u003cstrong\u003e\u003cem\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/Ilf_P-4sHAc?si=5k6Le8Ep6G1fb-kd\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003eIN STOCK - Plenty in stock.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe stock K-Series oil pump is a great piece for up to 8,000 rpm. Past that, there can be cavitation issues and oil pressure drops as temperatures rise.  The 4P ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested to 12,000 rpm with great success. The 4P Pump is designed to be used on all K24 and K20 engines (including the K20Z3). This part is cheap insurance to protect your multi-thousand dollar investment.\u003c\/p\u003e\n\u003cp\u003eThis pump has some advantages over the S2K pumps that are commonly used. The pickup is further forward, and lower in the pan, and it frees up an additional 1-2hp. This is the chosen pump for all of our racing engines for many of these reasons.\u003c\/p\u003e\n\u003cp\u003eInstallation Kits are available in the Options Menu for K20Z3 and K24 applications.\u003cbr\u003eInstallation Kit Includes:\u003cbr\u003e-Oil Chain\u003cbr\u003e-Chain Guide\u003cbr\u003e-Windage Tray\u003cbr\u003e-\u003cstrong\u003eThese pumps are notched for K24 fitment\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInstallation instructions with photos are included with all pumps.\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"None","offer_id":34524235595913,"sku":"4P-KPUMP-1","price":395.0,"currency_code":"USD","in_stock":true},{"title":"K24 Installation Kit","offer_id":34524235628681,"sku":"4P-KPUMP-2","price":555.0,"currency_code":"USD","in_stock":true},{"title":"K20Z3 Installation Kit","offer_id":34524235661449,"sku":"4P-KPUMP-3","price":555.0,"currency_code":"USD","in_stock":true},{"title":"K24Z3\/Z7 Swap Kit","offer_id":34524235694217,"sku":"4P-KPUMP-4","price":645.0,"currency_code":"USD","in_stock":true},{"title":"K24\/K20Z3 Install Kit with Race Baffle","offer_id":45299609534601,"sku":null,"price":765.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/602A1930.jpg?v=1763659767"},{"product_id":"k20c1sb2","title":"K20C1 Sleeved Type R Short Block","description":"\u003cp\u003e4 Piston Racing Short block assembly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChamfer and debur all sharp edges and oil galleys, chamfer bearing housings and bottom of cylinder bore\u003c\/li\u003e\n\u003cli\u003eHigh pressure thorough cleaning of oil galleys in block and crankshaft\u003c\/li\u003e\n\u003cli\u003eMic pistons and verify straight bore with precision Sunnen bore gauge, set piston to wall clearance for your application\u003c\/li\u003e\n\u003cli\u003eSet ring gap for specific application\u003c\/li\u003e\n\u003cli\u003eBalance rotating assembly\u003c\/li\u003e\n\u003cli\u003eSet bearing clearances\u003c\/li\u003e\n\u003cli\u003eRace preparation and debur to piston dome\u003c\/li\u003e\n\u003cli\u003ePrecision assembly in clean room\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWe build each engine to suit individual racing application... Drag race, road race, hill climb, street use, etc.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eComponents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHeavy Duty Ductile Iron Sleeve Block\u003c\/b\u003e - Diamond honed with torque plate for straightness.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCopper O-Ring**\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Honda Crank\u003c\/b\u003e - OEM Forged Honda Crankshaft.\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e4P I-Beam Connecting Rods\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e4P Wiseco Piston\u003c\/b\u003e - 86mm bore, custom 88mm available\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eACL Race Bearings\u003c\/b\u003e \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471357907081,"sku":"k20C1SB2","price":4950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/sleevedk20c-1.jpg?v=1605506191"},{"product_id":"4pk20-fwb-1","title":"4P K20 \/ K24 Heavy Hitter ARP2000 Flywheel Bolts","description":"\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/UlDIyFzWKkE?si=frlKCpSgKNfKX-RN\" height=\"315\" width=\"560\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003eTired of loose flywheels and stretch to yield bolts?\u003c\/p\u003e\n\u003cp\u003eOur Flywheel bolts are stronger and reusable, unlike the OEM flywheel bolts. They are also the proper length for all aftermarket crankshafts, which frequently have shallower threaded bolt sections. Say goodbye to loose flywheels, ruined crankshafts and clutches, and stop buying new bolts every time you unbolt your flywheel.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete Package of 8\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eThe \u003cspan style=\"text-decoration: underline;\"\u003eonly\u003c\/span\u003e bolt made from ARP 2000 Material\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eMade in the USA from premium materials\u003c\/li\u003e\n\u003cli\u003eFits all Honda K20 and K24 Engines\u003c\/li\u003e\n\u003cli\u003eInstallation tips included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"None","offer_id":34524173631625,"sku":"4PK20-FWB-1","price":120.0,"currency_code":"USD","in_stock":true},{"title":"Add 4P Diamond Lock","offer_id":34524173664393,"sku":"4PK20-FWB-2","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/4pk20flywheel1logo3.jpg?v=1764862826"},{"product_id":"hn5658-866","title":"Wiseco Boostline K20C1 Type R 1200hp Connecting Rod","description":"\u003cp\u003eThe design of connecting rods hasn’t evolved much over the years, says Nick DiBlasi, Global Automotive Product Manager for Wiseco. The BoostLine connecting rods is a scratch design that takes the best attributes of an H- and I-beam rod and merges them into one. Even though the BoostLine rod is designed for heavy duty use, we were able to keep the rod relatively light without compromising strength. Introducing BoostLine Connecting Rods by Wiseco Performance Products! The Wiseco engineering team created this new, patent-pending 3-pocket design specifically for demanding turbocharged, supercharged and big nitrous applications. These connecting rods are ideal for today’s high horsepower engines and provide 60% more bending strength compared to common H-beam rods! Each rod is designed, finished and inspected in the USA and includes an inspection report from our quality team. Designed specifically for high horsepower forced induction and nitrous applications -60% increase in bending strength vs. H-Beam -Patent Pending high strength 3-pocket design -Machined from premium 4340 forged steel -High quality ARP Bolts included -Inspected and finished in the USA (Mentor, Ohio) \u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/6oKEPmFQKSs\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34471360626825,"sku":"HN5658-866","price":895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/boostline1_2.jpg?v=1605482516"},{"product_id":"4pr-sl-20032","title":"4P Diamond Claw Crank Lock","description":"\u003cp\u003e4P Diamond Claw® flywheel surface lock helps to prevent flywheel bolts from backing out of the crankshaft in high rpm applications where vibrations and harmonics often cause welding of the flywheel to the crank. In the event that the flywheel does become loose and start to vibrate against the crank, this surface lock can help to protect the crank and prevent damage.\u003c\/p\u003e\n\u003cp\u003eDiamond Claw® Surface Locks have successfully eliminated fretting (surface welding) in every application they have been used in. With an installed thickness of .008 inch, a Diamond Claw® will not affect driveline alignment. Diamond Claw® locks consist of precisely sized CBN (diamond) particles that are plated onto proprietary fatigue resistant steel. The uniformity of both diamond particle spacing and overall thickness insured complete contact across the entire Diamond Claw® surface. Diamond with an exceptional hardness of 10,000 Vickers are held within a plating matrix of 950 Vickers. This combination of extreme hardness and toughness allow Diamond Claws® to penetrate surfaces hardened to Hrc 65.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/UlDIyFzWKkE?si=frlKCpSgKNfKX-RN\" height=\"315\" width=\"560\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"K Series \/ None","offer_id":34524033286281,"sku":"4PR-SL-20032","price":85.0,"currency_code":"USD","in_stock":true},{"title":"K Series \/ 4 Piston Flywheel Bolts","offer_id":34524033319049,"sku":"4PR-SL-20036","price":200.0,"currency_code":"USD","in_stock":true},{"title":"B Series \/ None","offer_id":34524033351817,"sku":"4PR-SL-20035","price":85.0,"currency_code":"USD","in_stock":true},{"title":"B Series \/ 4 Piston Flywheel Bolts","offer_id":34524033384585,"sku":"4PR-SL-20037","price":200.0,"currency_code":"USD","in_stock":true},{"title":"F20C S2000 \/ None","offer_id":34524033417353,"sku":"4PR-SL-20039","price":85.0,"currency_code":"USD","in_stock":true},{"title":"K20C1 Type R \/ None","offer_id":34524033482889,"sku":"4PR-SL-20041","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/diamondclaw2.jpg?v=1605480540"},{"product_id":"4-piston-k-series-extreme-race-chain-guides","title":"4 Piston K-Series Extreme Race Chain Guide","description":"\u003cp data-mce-fragment=\"1\"\u003e4 Piston Extreme Race Chain Guides are one of the biggest breakthroughs EVER for K-Series engines.  This is the Achilles heel of this engine, and  you can now consider it resolved.  Honda's timing system is perfectly fine for lower rpm operation with stock camshafts and pump gasoline.  In a harsh racing environment, we have increased the RPM substantially, raised the spring pressures to handle this RPM, have installed camshafts with massive lift, and use fuels that contaminate the oil and break down the OEM chain guide.  A stock chain guide cannot handle the rpm.  The plastic starts moving back and for erratically and begins to stretch.  The racing fuels break down the plastic and soften it until it fails.\u003cbr\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/1JrBz7SWuCM?si=iOig4-ycegYFnwyr\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003cbr\u003eOur one-piece design eliminates the movement of the guide against the aluminum and is made of a space-age material that is much stronger than aluminum, but is not broken down by ANY fuels including methanol and nitromethane.  The chain rides in a guided channel and the path of the chain has been altered to eliminate slap from the chain under extreme RPM conditions.  You can race on these guides for YEARS and when you take them out of the engine they will look brand new.  This can save you thousands of dollars per year in chain, guide, and tensioner maintenance....and much more by eliminating this critical failure point in these engines.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy are these better than other attempts at chain guides?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe one-piece design eliminates the guide moving back and forth against the metal.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWe didn't just duplicate a stock guide of alternate materials, we reshaped it to control the chain motion at high rpm.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOthers use material to be compatible with fuels, but the plastic is brittle and fails faster than even a stock guide.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cb\u003eRace on it, and take a look....you cannot see any wear on these guides after use.  This material is super expensive, and used in all sorts of extreme applications....even replacement for critical human bones.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eMADE IN THE USA 100%\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"K24","offer_id":34539810095241,"sku":"4P-CHGUIDE-K-1","price":725.0,"currency_code":"USD","in_stock":true},{"title":"K20","offer_id":34539810128009,"sku":"4P-CHGUIDE-K-2","price":725.0,"currency_code":"USD","in_stock":true},{"title":"K24 Combo","offer_id":44949289173129,"sku":"4P-CHGUIDE-K24-Combo","price":1095.0,"currency_code":"USD","in_stock":true},{"title":"K20 Combo","offer_id":44949289205897,"sku":"4P-CHGUIDE-K20-Combo","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/ChainGuide6.jpg?v=1764868102"},{"product_id":"callies-rod-and-wiseco-piston-combo-promotion","title":"Callies Rod and Wiseco Piston COMBO PROMOTION","description":"\u003ch2 data-start=\"411\" data-end=\"463\"\u003eCallies Compstar Rod \u0026amp; Wiseco Forged Piston Combo\u003c\/h2\u003e\n\u003cp data-start=\"465\" data-end=\"687\"\u003eBuild your bottom end with confidence using this premium \u003cstrong data-start=\"522\" data-end=\"591\"\u003eCallies Compstar SS connecting rod and Wiseco forged piston combo\u003c\/strong\u003e — engineered for serious performance, durability, and reliability in high-output engine builds.\u003c\/p\u003e\n\u003cp data-start=\"689\" data-end=\"906\"\u003eThis exclusive promotion pairs industry-proven \u003cstrong data-start=\"736\" data-end=\"759\"\u003eCallies forged rods\u003c\/strong\u003e with \u003cstrong data-start=\"765\" data-end=\"795\"\u003eWiseco performance pistons\u003c\/strong\u003e, giving you a matched rotating assembly solution trusted by professional engine builders and racers worldwide.\u003c\/p\u003e\n\u003cp data-start=\"908\" data-end=\"1115\"\u003eWhether you're building a street performance setup, turbocharged application, or high-compression naturally aspirated engine, this rod and piston combo delivers the strength and precision your build demands.\u003c\/p\u003e\n\u003chr data-start=\"1117\" data-end=\"1120\"\u003e\n\u003ch2 data-start=\"1122\" data-end=\"1150\"\u003e Why Choose This Combo?\u003c\/h2\u003e\n\u003cul data-start=\"1152\" data-end=\"1774\"\u003e\n\u003cli data-start=\"1152\" data-end=\"1349\"\u003e\n\u003cp data-start=\"1154\" data-end=\"1349\"\u003e\u003cstrong data-start=\"1154\" data-end=\"1189\"\u003eCallies Compstar SS H-Beam Rods\u003c\/strong\u003e\u003cbr data-start=\"1189\" data-end=\"1192\"\u003eForged from premium 4340 steel and precision-machined for exceptional strength and fatigue resistance — ideal for high horsepower and boosted applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1351\" data-end=\"1534\"\u003e\n\u003cp data-start=\"1353\" data-end=\"1534\"\u003e\u003cstrong data-start=\"1353\" data-end=\"1378\"\u003eWiseco Forged Pistons\u003c\/strong\u003e\u003cbr data-start=\"1378\" data-end=\"1381\"\u003eLightweight, high-strength forged pistons designed for improved combustion efficiency, durability, and consistent performance under extreme conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1536\" data-end=\"1653\"\u003e\n\u003cp data-start=\"1538\" data-end=\"1653\"\u003e\u003cstrong data-start=\"1538\" data-end=\"1569\"\u003eMatched Performance Package\u003c\/strong\u003e\u003cbr data-start=\"1569\" data-end=\"1572\"\u003eDesigned to work together for optimal reliability in performance engine builds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1655\" data-end=\"1774\"\u003e\n\u003cp data-start=\"1657\" data-end=\"1774\"\u003e\u003cstrong data-start=\"1657\" data-end=\"1681\"\u003eCustomizable Options\u003c\/strong\u003e\u003cbr data-start=\"1681\" data-end=\"1684\"\u003eSelect your bore size and piston configuration to suit your specific build requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1776\" data-end=\"1779\"\u003e\n\u003ch2 data-start=\"1781\" data-end=\"1796\"\u003e🔧 Ideal For\u003c\/h2\u003e\n\u003cul data-start=\"1798\" data-end=\"1976\"\u003e\n\u003cli data-start=\"1798\" data-end=\"1827\"\u003e\n\u003cp data-start=\"1800\" data-end=\"1827\"\u003ePerformance street builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1828\" data-end=\"1867\"\u003e\n\u003cp data-start=\"1830\" data-end=\"1867\"\u003eTurbocharged or supercharged setups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1868\" data-end=\"1898\"\u003e\n\u003cp data-start=\"1870\" data-end=\"1898\"\u003eHigh-compression NA builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1899\" data-end=\"1943\"\u003e\n\u003cp data-start=\"1901\" data-end=\"1943\"\u003eEngine rebuilds and performance upgrades\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1944\" data-end=\"1976\"\u003e\n\u003cp data-start=\"1946\" data-end=\"1976\"\u003eRacers and serious enthusiasts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1978\" data-end=\"1981\"\u003e\n\u003ch2 data-start=\"1983\" data-end=\"2033\"\u003e🏁 Built for Power. Engineered for Reliability.\u003c\/h2\u003e\n\u003cp data-start=\"2035\" data-end=\"2255\"\u003eWhen upgrading your rotating assembly, quality matters. Combining \u003cstrong data-start=\"2101\" data-end=\"2135\"\u003eCallies forged connecting rods\u003c\/strong\u003e with \u003cstrong data-start=\"2141\" data-end=\"2166\"\u003eWiseco forged pistons\u003c\/strong\u003e ensures your bottom end can handle increased RPM, boost, and horsepower with confidence.\u003c\/p\u003e\n\u003cp data-start=\"2257\" data-end=\"2360\"\u003eTake advantage of this limited-time promotion and secure premium components for your next engine build.\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34542430421129,"sku":"CALLIESWISECOPROMO","price":1098.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/IGblackfriday.callieswiseco.22.jpg?v=1734549623"},{"product_id":"4-piston-racing-gift-card","title":"4 Piston Racing Gift Card","description":"\u003cp data-mce-fragment=\"1\"\u003eMake gifts easy this year!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e4 Piston Racing Gift Certificates are available in $25, $50, $100, and $500 and can be used for ANYTHING we sell - from apparel to high performance racing components and engines.  If you have a good Sugar Mamma....con her into that $1,000 joint.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eUpon your purchase you will receive your gift certificate quickly via digital download. \u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"$100.00","offer_id":34545094787209,"sku":"","price":100.0,"currency_code":"USD","in_stock":true},{"title":"$500.00","offer_id":34545094819977,"sku":"","price":500.0,"currency_code":"USD","in_stock":true},{"title":"$1,000.00","offer_id":34545094852745,"sku":"","price":1000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/4PGiftCert.jpg?v=1637240552"},{"product_id":"4p-pro-r40-k24z-cnc-cylinder-head","title":"4P Pro R40 K24Z CNC Cylinder Head","description":"\u003cp\u003eThe NEW Pro R40 CNC cylinder head is the ultimate cylinder head for your K24Z powered street or race car.  This platform has long been neglected due to a lack of camshaft and valvetrain availability, and the single port exhaust design that has been touted as an Achilles heel when compared to traditional 4 port K20 cylinder heads.  It is true that this presents some challenges when building a maximum output high rpm platform, but it also presents some great opportunities.  The intake port from the factory stock R40 is actually the best flowing K-Series port that Honda has produced to date, and we drastically improve on that.  The exhaust may appear to be a challenge, but it can be exploited as a great opportunity for many users.  This head design makes turbo packaging much easier, and reasonably sized turbos in the 500-850whp range respond and spool very fast.  This R40 cylinder head arrangement is also preferred in some RWD applications for its superior packaging.  You may be a person that doesn't want to tackle the challenges of swapping to a 4 port head, and this CNC Cylinder head lays the ground work for you to make more power than you can ever use effectively.\u003c\/p\u003e\n\u003cp\u003eWe take the R40 Cylinder Head casting and CNC port the intake ports and critical bottleneck areas of the exhaust port.  This includes the bowls and short turns, and a major rework of the exhaust outlet.  Areas of the port that are close to water jackets are left alone to prevent cracking with high exhaust temperatures and big boost loads.  Once the head is CNC ported, we finish it off with a fresh surface and our Newen single point CNC valve job.  We also offer our own PAC valve spring setup that is far superior in valve control and longevity than preexisting offerings.  4P Camshafts are in production, with delivery expected late 2021.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSend your R40 head casting for us to port, or purchase our cores outright without having to send one in.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOEM Guides left in for porting or OPTIONAL Bronze valve guides\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff6600;\"\u003eNO VALVES\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll Motor Street\/Race\u003c\/li\u003e\n\u003cli\u003eTurbo Street\u003c\/li\u003e\n\u003cli\u003eRoad Race and Time Attack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e370cfm airflow where popular camshafts lift, and huge low end and midrange flow.\u003c\/li\u003e\n\u003cli\u003eSlow-cut precision 5-axis cnc porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003e45 degree valve job designed for long life and durability.\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design.\u003c\/li\u003e\n\u003cli\u003eOptional Full length bronze manganese valve guide for valve stability.\u003c\/li\u003e\n\u003cli\u003ePort walls are left extra thick for high boost applications.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eAll heads require a core! You can send us your head, or purchase one from us at the current market price.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eSee our 340hp R40 head and cam test below, all motor, pump gas.  We changed induction and made 356 the next day!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003ciframe src=\"https:\/\/www.facebook.com\/plugins\/video.php?height=314\u0026amp;href=https%3A%2F%2Fwww.facebook.com%2F4Piston%2Fvideos%2F478304343950924%2F\u0026amp;show_text=false\u0026amp;width=560\u0026amp;t=0\" width=\"560\" height=\"314\" style=\"border: none; overflow: hidden;\" scrolling=\"no\" frameborder=\"0\" allowfullscreen=\"true\" allow=\"autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share\"\u003e\u003c\/iframe\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":34611770556553,"sku":"Pro-R40","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/ProR40.4.jpg?v=1764857275"},{"product_id":"4p-ported-rrc-type-r-oil-pump-k20-k24","title":"4P Ported RRC Type R Oil Pump K20\/K24","description":"\u003cp\u003e\u003cspan style=\"color: #ff0000;\" mce-data-marked=\"1\"\u003e\u003cstrong\u003e\u003cem\u003eThese have to be used with an RRC aluminum oil pan due to pickup location.  RRC is a JDM Type R and K20Z3 used here in the USA.\u003cbr\u003e\u003cbr\u003eOil Pan Part #  11200-RRC-000\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe stock K-Series oil pump is a great piece for up to 8,000 rpm. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. Our ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested well over 11,000 rpm with great success. We start with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow, and modify the outside housing so that it can be used on all K24 and K20 engines (including the K20Z3). The pumps are then cleaned, oiled, reassembled and repackaged. This part is cheap insurance to protect your multi-thousand dollar investment.\u003c\/p\u003e\n\u003cp\u003eThis pump has some advantages over the S2K pumps that are commonly used. The pickup is further forward, and lower in the pan, and it frees up an additional 1-2hp. This is the chosen pump for all of our racing engines for many of these reasons.\u003c\/p\u003e\n\u003cp\u003eInstallation Kits are available in the Options Menu for K20Z3 and K24 applications.\u003cbr\u003e Installation Kit Includes:\u003cbr\u003e -Oil Chain\u003cbr\u003e -Chain Guide\u003cbr\u003e -Windage Tray\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eInstallation instructions with photos are included with all pumps.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e\u003cem\u003eThese have to be used with an RRC aluminum oil pan due to pickup location.  RRC is a JDM Type R and K20Z3 used here in the USA.\u003cbr\u003e\u003cbr\u003eOil Pan Part #  11200-RRC-000\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"None","offer_id":39295596134537,"sku":"4P-RRC-KPUMP-1","price":495.0,"currency_code":"USD","in_stock":true},{"title":"K24 Installation Kit","offer_id":39295596167305,"sku":"4P-RRC-KPUMP-2","price":650.0,"currency_code":"USD","in_stock":true},{"title":"K20Z3 Installation Kit","offer_id":39295596200073,"sku":"4P-RRC-KPUMP-3","price":650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/RRCPump3.jpg?v=1763659669"},{"product_id":"625-extreme-duty-head-studs","title":"4P 625+ Extreme Duty Head-Studs","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eIN STOCK\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e4 Piston Racing Head Stud Kit for Honda\/Acura B \u0026amp; K Series (B18C1, B18C5, B20VTEC, LSVTEC, K20, K24, K20C1 Type-R, k20c4)\u003c\/p\u003e\n\u003cp\u003eThese studs are made exclusively for 4 Piston by ARP to be the absolute best for your racing engine.  There is no other material on the market better suited for cylinder head clamping.  625+ material is substantially stronger than any entry level 8740 head stud material, and substantially stronger than L19.  \u003cstrong\u003eL19 is subject to hydrogen embrittlement and stress corrosion\u003c\/strong\u003e.  Even if handled properly during the assembly process, L19 is exposed to condensation inside a running engine.  There is nothing you can do to avoid this. Furthermore,  \u003cstrong\u003e625+ has a yield strength 17% greater than L19 and 30% greater than 8740.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBuild your engine with the absolute best from 4 Piston, and turn the boost up!  Make sure you select the correct engine in the drop-down menu.\u003c\/p\u003e\n\u003cp\u003e·Each kit includes a complete set of 625+ head studs, nuts, washers, ARP Assembly Lubricant, and installation instructions.\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"B16\/B18C","offer_id":39411469385865,"sku":"4PR-Bstud-625","price":625.0,"currency_code":"USD","in_stock":true},{"title":"K20\/K24","offer_id":39411469418633,"sku":"4PR-Kstud-625","price":625.0,"currency_code":"USD","in_stock":true},{"title":"K20C1 Type R","offer_id":39411469451401,"sku":"4PR-K20Cstud-627","price":625.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/625headstud5.jpg?v=1763658365"},{"product_id":"4p-tr3-racing-camshafts-k20c1-type-r","title":"4P TR3 Racing Camshafts - K20C1 Type R","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\" mce-data-marked=\"1\"\u003e\u003cstrong\u003eIN STOCK!!\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\" mce-data-marked=\"1\"\u003e\u003cstrong\u003eFits FK8 and FL5 Civic Type R\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 4P TR3 racing camshaft was specifically designed for our 2.0L K20C1 race engine program. The primary lobes allow for a stock idle and tame drivability perfectly suitable for everyday use in traffic, but with significant power gains over stock.  You will experience a much more audible and traditional VTEC crossover that was lost in the OEM K20C1 and much more RPM capability over an OEM camshaft.  These are made from a billet core camshaft to ensure maximum durability\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eGains of 40-60+hp are realized through the RPM range, and more as you continue to pull beyond 8000 rpm.   Camshafts are supplied with cam card and VTC limiting pins with detailed photo for their placement.\u003c\/p\u003e\n\u003cp\u003eIntake Lift - 0.491\"\u003cbr\u003eIntake Duration - 234 @ 0.050\"\u003cbr\u003eExhaust Lift - 0.494\"\u003cbr\u003eExhaust Duration - 238 @ 0.050\"\u003cbr\u003e\u003cbr\u003e**Aftermarket Valve Springs are Required for the TR3 Camshaft.  They will coil bind a stock valve spring**\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRequired Valve Spring:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4P Spring KIT TRKTR3\u003c\/li\u003e\n\u003cli\u003e**Ferrea KT4033 with SL1153 spring seat on exhaust cam**\u003cbr\u003e \u003cstrong\u003eSpring will Coil Bind if you do not use SL1153 spring seat on exhaust\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFerrea KT4038 can be used but it eliminates VTEC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eRecommended Rocker Arm:\u003c\/b\u003e\u003cbr\u003eOEM Honda Rocker Arm\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFK8 Test Data\u003cbr\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/4pistonracing.com\/blogs\/news\/k20c1-camshaft-testing\" data-mce-href=\"https:\/\/4pistonracing.com\/blogs\/news\/k20c1-camshaft-testing\"\u003eK20C1 Camshaft Testing - Unlocking the RPM, sound, and power we all lo – 4 Piston Racing\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFL5 Test Data\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/4pistonracing.com\/blogs\/news\/fl5-civic-type-r-4p-tr2-camshaft-install-and-dyno-test\" data-mce-href=\"https:\/\/4pistonracing.com\/blogs\/news\/fl5-civic-type-r-4p-tr2-camshaft-install-and-dyno-test\" data-mce-fragment=\"1\"\u003eFL5 Civic Type R - 4P TR2 Camshaft Install and Dyno Test – 4 Piston Racing\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":39525053104265,"sku":"4PR-CAM-TR3","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/4PTR2TR3.1.jpg?v=1763661043"},{"product_id":"4p-reaper-cnc-cylinder-head","title":"4P REAPER CNC Cylinder Head","description":"\u003ch2\u003eIntroducing the \u003cspan style=\"color: #f90707;\"\u003e4P REAPER\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eMonths of development has lead to this.  In 2018 we worked tirelessly on developing a superior port for our Billet K20 cylinder head.  It is a clean slate design that could not fit into any OEM cylinder head casting, and one that outflowed anything on the market by a landslide.  Unfortunately after complaints from our competitors, our Billet head was banned from competition.  We immediately put that energy into developing a race port that has changed All Motor forever.  Even our competition runs it, copies it, benchmarks from it.  Our warpath has not only won every All Motor race competition since, but has held every record in the class since....the rampage has been so fierce that the competition all but quit.\u003cbr\u003e\u003cbr\u003e4P Race Castings allow us to put much of our billet head design into a more affordable casting that is superior in every way, and allows cooling that is suitable for the street and endurance racing.\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh flow intake port that outperforms top to bottom 440+ CFM.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh flow exhaust port.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBalanced combustion chamber developed after hundreds of dyno pulls on various engine combinations.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNew Oversized valve seats available in steel and copper beryllium.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBronze valve guides standard.\u003c\/li\u003e\n\u003cli\u003eNewen CNC Valve Job developed specifically for this head.\u003c\/li\u003e\n\u003cli\u003eRBC Style heads are shipping now, PRB Style heads ship February 2022.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCasting Design Features\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eAs OEM castings have gone out of production, those in the field have aged and worn, and the demands on our race engines have increased, we needed to develop a superior alternative to OEM.  The 4P Race Casting is superior in every way.\u003cstrong\u003e \u003cspan style=\"color: #fa0707;\"\u003eExclusively available at 4P.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade IN THE USA from A356-T6 Aluminum\u003c\/li\u003e\n\u003cli\u003eThese \"porting castings\" give us a clean slate to put any port size and shape we choose, and offer a \"full cleanup\"\u003c\/li\u003e\n\u003cli\u003eWe machine a wide variety of combustion chamber shapes and sizes to suit your application.\u003c\/li\u003e\n\u003cli\u003ePort wall thickness is increased over OEM dramatically to allow us to run larger ports and move them around for high rpm applications.  Increased port wall thickness also allows for extreme boost applications.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExtra thick deck for increased rigidity and high boost handling capabilities.\u003c\/li\u003e\n\u003cli\u003eSuperior cooling through 3D printed water jackets\u003c\/li\u003e\n\u003cli\u003eAll heads accept VTEC and non-VTEC arrangement with OEM or aftermarket components.\u003c\/li\u003e\n\u003cli\u003eThese race ported heads are 100% designed, machined, and finished in house at 4 Piston Racing.  We will build you the head you need for your race or street program.\u003c\/li\u003e\n\u003cli\u003eHeads available in PRB and RSP\/RBC Style water jacket arrangements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eR40 K24Z heads available in 4 Port Exhaust Configurations to fit ANY of our Port Designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch2\u003e\u003c\/h2\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":39668158201993,"sku":"4P-REAPER","price":3100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/Reaper1cut.jpg?v=1668797935"},{"product_id":"endyn-sprint-s2000-cylinder-head","title":"Endyn Sprint S2000 Cylinder Head","description":"\u003ch2\u003eEndyn (F20C-F22C) Sprint Cylinder Head\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #fa0707;\"\u003e\u003cstrong\u003eExclusively available at 4 Piston\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandard ports are higher velocity than OE's while flowing substantially more air to aid both mid-range torque production and high RPM power.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStandard valve sizes are 36mm intake and 31mm exhaust\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOE-style combustion chamber with Sprint design reduces volume by over 4cc for use with OE pistons and shortblock.  4P chamber available for aftermarket pistons.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThick decks for stability and head gasket retention in extreme power applications.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThick port walls allowing \"generous\" porting without casting failure.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExhaust side water\/air bleed.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProduction OE valvetrain maintained.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4P Pro S2K Race Ports are available with 36mm, 37mm, and 38.3mm high flow port designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCasting Design Features\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eAs OEM castings have gone out of production, those in the field have aged and worn, and the demands on our race engines have increased, we needed to develop a superior alternative to OEM.  Through our partnership with Endyn and MAST, the 4P Race Casting is superior in every way.\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade IN THE USA from A356-T6 Aluminum\u003c\/li\u003e\n\u003cli\u003eThese \"porting castings\" give us a clean slate to put any port size and shape we choose, and offer a \"full cleanup\"\u003c\/li\u003e\n\u003cli\u003eWe machine a wide variety of combustion chamber shapes and sizes to suit your application.\u003c\/li\u003e\n\u003cli\u003ePort wall thickness is increased over OEM dramatically to allow us to run larger ports and move them around for high rpm applications.  Increased port wall thickness also allows for extreme boost applications.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExtra thick deck for increased rigidity and high boost handling capabilities.\u003c\/li\u003e\n\u003cli\u003eSuperior cooling through 3D printed water jackets\u003c\/li\u003e\n\u003cli\u003eAll heads accept VTEC and non-VTEC arrangement with OEM or aftermarket components.\u003c\/li\u003e\n\u003cli\u003eThese race ported heads are 100% designed, machined, and finished in house at 4 Piston Racing.  We will build you the head you need for your race or street program.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch2\u003e\u003c\/h2\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":39687386693769,"sku":"4P-ENDS2K-SPRINT","price":3100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/endyns2k.jpg?v=1764857542"},{"product_id":"4p-r40-k24z-4-port-race-head","title":"4P R40 K24Z \"4-Port\" Race Head","description":"\u003ch2\u003eIntroducing the \u003cspan style=\"color: #f90707;\"\u003e4P R40 \"4-port\" Race Head\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe big debate of porting the R40 or swapping to a 4 Port head for your 9th generation Civic will be battled to the death.  There are absolute advantages to both configurations.  For you guys that want a 4 Port and fly that flag, we have the ULTIMATE solution.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOur 4 Port Race casting gives you an OEM R40 water configuration and a 4 port exhaust layout.....and NO half ass RTV on the gasket surface or welding.  It also gives you VTEC provisions on INTAKE and EXHAUST so that you can run traditional K20 based camshafts and rockers.  Or you can run your R40 cams and rockers. BRING ON THE HORSEPOWER.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eANY 4 Piston CNC Race Port will fit into this head....Pro 156, Pro R40, Pro 163, Super99, Peacemaker Jr, Peacemaker, Outlaw Turbo....you pick.  No more being held back!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e.150\" thicker deck than an OEM casting for better gasket sealing and bigger boost!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThicker port walls...even with our biggest most aggressive port, you have a thicker wall than any OEM casting.  You want ALL the boost?  No problem.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLMA provisions for VTEC on both sides!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBronze valve guides standard.\u003c\/li\u003e\n\u003cli\u003eNewen CNC Valve Job developed specifically for this head.\u003c\/li\u003e\n\u003cli\u003eHeads are IN STOCK and ready to be machined!  Pick your options!\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCasting Design Features\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eAs OEM castings have gone out of production, those in the field have aged and worn, and the demands on our race engines have increased, we needed to develop a superior alternative to OEM.  The 4P Race Casting is superior in every way.\u003cstrong\u003e \u003cspan style=\"color: #fa0707;\"\u003eExclusively available at 4P.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade IN THE USA from A356-T6 Aluminum\u003c\/li\u003e\n\u003cli\u003eThese \"porting castings\" give us a clean slate to put any port size and shape we choose, and offer a \"full cleanup\"\u003c\/li\u003e\n\u003cli\u003eWe machine a wide variety of combustion chamber shapes and sizes to suit your application.\u003c\/li\u003e\n\u003cli\u003ePort wall thickness is increased over OEM dramatically to allow us to run larger ports and move them around for high rpm applications.  Increased port wall thickness also allows for extreme boost applications.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExtra thick deck for increased rigidity and high boost handling capabilities.\u003c\/li\u003e\n\u003cli\u003eSuperior cooling through 3D printed water jackets\u003c\/li\u003e\n\u003cli\u003eAll heads accept VTEC and non-VTEC arrangement with OEM or aftermarket components.\u003c\/li\u003e\n\u003cli\u003eThese race ported heads are 100% designed, machined, and finished in house at 4 Piston Racing.  We will build you the head you need for your race or street program.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eR40 K24Z heads available in 4 Port Exhaust Configurations to fit ANY of our Port Designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch2\u003e\u003c\/h2\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":39692544213129,"sku":"4P-MAST-R40","price":2900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/IGblackfriday.MASTR40.21.jpg?v=1637357583"},{"product_id":"4-piston-s2000-f20-f22c-2-4-2-5l-stroker-kit","title":"4 Piston S2000 F20\/F22C 2.4-2.5L Stroker Kit","description":"\u003cp\u003eThis stroker kit is meant to run an OEM K24 crankshaft in an S2000 block. We offer this with various bore sizes but recommend the 89.5mm as our premium setup. It features a custom 4P Saenz I-beam lightweight steel long rod, and a Wiseco 3-ring Pro Endurance lightweight piston. The piston is a strutted box forging with 18mm tool steel wrist pin with raised compression height. The raised compression height and long rod allows us to reduce the side loading in the cylinder with the large bore. It is normal to run these engines to 9500+rpm for a good reliable setup.  Paired with our Pro S2k head and Cams, this setup can produce 350hp naturally aspirated.\u003c\/p\u003e\n\u003cp\u003e-Available with or without crankshaft\u003cbr\u003e -Lightweight I-Beam Connecting Rod\u003cbr\u003e -Wiseco Pro Endurance Piston\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e 87.5mm Piston makes 2381cc\u003cbr\u003e 89.5mm Piston makes 2491cc\u003cbr\u003e 90mm Piston makes 2519cc\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"No Crank \/ 87.5mm \/ 12.8:1","offer_id":39704108957833,"sku":"4PR-F2099-STROKER-KIT-4","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 87.5mm \/ 13.5:1","offer_id":39704108990601,"sku":"4PR-f2099-STROKER-KIT-5","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 87.5mm \/ 14.5:1","offer_id":39704109023369,"sku":"4PR-F2099-STROKER-KIT-6","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 89.5mm \/ 12.8:1","offer_id":39704109056137,"sku":"4PR-F2099-STROKER-KIT-7","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 89.5mm \/ 13.5:1","offer_id":39704109088905,"sku":"4PR-F2099-STROKER-KIT-8","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 89.5mm \/ 14.5:1","offer_id":39704109121673,"sku":"4PR-F2099-STROKER-KIT-9","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 90mm \/ 12.8:1","offer_id":39704109154441,"sku":"4PR-F2099-STROKER-KIT-10","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 90mm \/ 13.5:1","offer_id":39704109187209,"sku":"4PR-F2099-STROKER-KIT-11","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"No Crank \/ 90mm \/ 14.5:1","offer_id":39704109219977,"sku":"4PR-F2099-STROKER-KIT-12","price":2400.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 87.5mm \/ 12.8:1","offer_id":39740442542217,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 87.5mm \/ 13.5:1","offer_id":39740442574985,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 87.5mm \/ 14.5:1","offer_id":39740442607753,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 89.5mm \/ 12.8:1","offer_id":39740442640521,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 89.5mm \/ 13.5:1","offer_id":39740442673289,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 89.5mm \/ 14.5:1","offer_id":39740442706057,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 90mm \/ 12.8:1","offer_id":39740442738825,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 90mm \/ 13.5:1","offer_id":39740442771593,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true},{"title":"OEM Crank Modified To Fit Block \/ 90mm \/ 14.5:1","offer_id":39740442804361,"sku":"","price":3300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/k2099sk.1_737c23fb-481b-42b7-b9e4-1898165c96fe.jpg?v=1637693140"},{"product_id":"copy-of-4p-tr3-racing-camshafts-k20c1-type-r","title":"4P TR2 Drop-In Camshafts - K20C1 Type R","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\" color=\"#ff2a00\"\u003e\u003cb\u003eIN STOCK\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\" color=\"#ff2a00\"\u003e\u003cb\u003eFits FK8 and FL5 Civic Type R\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 4P TR2 drop-in camshaft was specifically designed for easy installation into a stock 2.0L K20C1, on a stock valve spring.  These can be easily installed in about 2 hours by an experienced technician....it may take you a touch longer if you are feeling your way through it. The primary lobes allow for a stock idle and tame drivability perfectly suitable for everyday use in traffic, but with significant power gains over stock.  You will experience a much more audible and traditional VTEC crossover that was lost in the OEM K20C1 and much more RPM capability over an OEM camshaft.  These are made from a billet core camshaft to ensure maximum durability.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eGains of 25-40+hp are realized through the RPM range, and more as you continue to pull to 8000 rpm.   Camshafts are supplied with cam card and VTC limiting pins with detailed photo for their placement.\u003cbr\u003e\u003cbr\u003eStock valve springs are OK with this cam.  It is a true DROP IN.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Valve Spring:\u003cbr\u003e\u003c\/b\u003eStock is acceptable\u003cbr\u003eSupertech is acceptable\u003cbr\u003eFerrea KT4033 and KT4038 are acceptable\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Rocker Arm:\u003c\/b\u003e\u003cbr\u003eOEM Honda Rocker Arm\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFK8 Test Data\u003cbr\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/4pistonracing.com\/blogs\/news\/k20c1-camshaft-testing\"\u003eK20C1 Camshaft Testing - Unlocking the RPM, sound, and power we all lo – 4 Piston Racing\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFL5 Test Data\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/4pistonracing.com\/blogs\/news\/fl5-civic-type-r-4p-tr2-camshaft-install-and-dyno-test\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/4pistonracing.com\/blogs\/news\/fl5-civic-type-r-4p-tr2-camshaft-install-and-dyno-test\"\u003eFL5 Civic Type R - 4P TR2 Camshaft Install and Dyno Test – 4 Piston Racing\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":40194541486217,"sku":"4PR-CAM-TR2","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/4PTR2TR3.1_5023e7de-e576-442a-9c62-7a260893b220.jpg?v=1763661004"},{"product_id":"4p-k24-in-stock-short-block","title":"4P K24 IN STOCK Short Block - Turbo \u0026 All Motor","description":"\u003cp\u003e4 Piston Racing IN STOCK Short Block Assembly\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003e\u003cbr\u003eIN STOCK SHIPS RIGHT AWAY - No Wait Time for Build\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eBuilt with a BRAND NEW OEM Honda Block and Crank, not refurbished.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eComponents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e*NEW* OEM Sleeve Block\u003c\/b\u003e - BRAND NEW OEM Honda K24 Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e*NEW* OEM Honda Crank\u003c\/b\u003e - BRAND NEW OEM Forged Honda Crankshaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCallies Compstar\u003c\/b\u003e - Callies H-Beam Connecting Rods. (Optional Saenz Performance I-Beam)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWiseco Shelf Stock Pistons\u003c\/b\u003e - Wiseco 87mm Pistons available in compression of your choice\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOptions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade Connecting rods\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePorted Type S Oil Pump - The OEM Type S pump works great for motors that turn up to 9000 rpm. Past that, the pump can cavitate. We modify brand new OEM pumps for use up to 11,000 rpm. Skip the big cost and installation challenges of a modified S2000 pump in favor of this effective and more affordable option.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":40773959221385,"sku":"K24SB.NEW","price":3680.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/K24instock1.jpg?v=1768400730"},{"product_id":"4p-turbo-k-series-race-head","title":"4P Kingpin Turbo K-Series Race Head","description":"\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIntroducing the 4P \"Kingpin\" K-Series Race Head\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThis cylinder head is specifically designed to take the extreme abuse of ultra-high horsepower applications.  As SFWD, AWD, and Pro RWD cars begin to exceed 1500whp, 1800hp, and even 2000+hp, the OEM head castings become a failure point, often splitting in half or cracking through the deck and port walls.  The 4P Kingpin uses the 4P Race Casting which features a deck that is 3x thicker than any OEM casting, and port walls that are MUCH thicker than stock.  These heads have been proven on race cars running over 100psi of boost that were splitting heads in half nearly every pass.  These simply will not suffer the same fate.  That thicker deck and casting provides superior head gasket sealing and improves power by keeping things rigid and from moving around.  These castings are made in the USA using premium materials, then we put them through a special process that removes porosity to make these solid like a piece of billet.  While your competition is running stock ports to try to hold them together, step up to the 4P Kingpin and give your race program a serious power and reliability advantage.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eThe 10 fastest AWD cars in the world run 4P Race Castings, B \u0026amp; K\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eWorld's Fastest 4 Cylinder \"No War\" 5.86@244 MPH!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003ePimar Racing 5 second Acura runs 4P Race Casting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong style=\"color: rgb(255, 42, 0); font-size: 0.875rem;\"\u003eFrustrate EG AWD 7.14@195 MPH posted huge gains going from stock head to our Pro TSX, then anther 2 tenths going to the KINGPIN!  \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong style=\"color: rgb(255, 42, 0); font-size: 0.875rem;\"\u003eThe AWD Top 10 is owned by the Kingpin.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCasting Design Features\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eAs OEM castings have gone out of production, those in the field have aged and worn, and the demands on our race engines have increased, we needed to develop a superior alternative to OEM.  The 4P Race Casting is superior in every way.\u003cstrong\u003e \u003cspan style=\"color: #fa0707;\"\u003eExclusively available at 4P.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade IN THE USA from A356-T6 Aluminum\u003c\/li\u003e\n\u003cli\u003eThese \"porting castings\" give us a clean slate to put any port size and shape we choose, and offer a \"full cleanup\"\u003c\/li\u003e\n\u003cli\u003eWe machine a wide variety of combustion chamber shapes and sizes to suit your application.\u003c\/li\u003e\n\u003cli\u003ePort wall thickness is increased over OEM dramatically to allow us to run larger ports and move them around for high rpm applications.  Increased port wall thickness also allows for extreme boost applications.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExtra thick deck for increased rigidity and high boost handling capabilities.\u003c\/li\u003e\n\u003cli\u003eSuperior cooling through 3D printed water jackets\u003c\/li\u003e\n\u003cli\u003eAll heads accept VTEC and non-VTEC arrangement with OEM or aftermarket components.\u003c\/li\u003e\n\u003cli\u003eThese race ported heads are 100% designed, machined, and finished in house at 4 Piston Racing.  We will build you the head you need for your race or street program.\u003c\/li\u003e\n\u003cli\u003eHeads available in PRB and RSP\/RBC Style water jacket arrangements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eR40 K24Z heads available in 4 Port Exhaust Configurations to fit ANY of our Port Designs.\u003c\/li\u003e\n\u003cli\u003eAlso available for F20C\/F22C S2000....ask us for a quote!  It is the same price!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":40949261533321,"sku":"4P-Kingpin","price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/files\/Reaper1cut.jpg?v=1764857130"},{"product_id":"copy-of-4p-ported-k20c1","title":"4P K20C1 Ported High Flow Oil Pump","description":"\u003cp\u003e\u003cspan style=\"color: #2b00ff;\" mce-data-marked=\"1\"\u003e\u003cstrong\u003e\u003cem\u003eIN STOCK\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 4P Ported High Flow Oil Pump for your K20C1 Type R, Accord, or Integra has been carefully developed after years of on-track development in 4P K20C1 racing engines.  Engines for racing applications are built with different tolerances and operated at high temperature under full load.  RPM capabilities are increased dramatically in 4P race engines and the need for a better performing oil system is critical.  These changes in the operating environment and how the engines are assembled require the oil pump to flow much better than OEM to maintain the pressures required to protect your engine.\u003c\/p\u003e\n\u003cp\u003eThe 4P oil pump increases the flow rate by more than 10% and eliminates cavitation and aeration in your oil as you begin to increase your engine speed beyond 8000 rpm.\u003c\/p\u003e\n\u003cp\u003eThese pumps are great for your track day car, dedicated street car, and are perfectly suitable for your everyday street car.  This part is cheap insurance to protect your multi-thousand dollar investment.  You can depend on the 4P name and our relentless pursuit to produce the world's best engines.  We bring decades of experience in perfecting Honda oiling systems as seen with our world renowned K20 and B-Series oil systems that have allowed racers to maintain oil pressure to beyond 12,000 rpm without cavitation and while maintaining constant pressure through the entire RPM range.  That same expertise has been applied to our K20C1 Ported High Flow pump in our racing engines since their release and is now available to everyone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003cbr\u003e-K20C Type R\u003cbr\u003e-K20C Accord\u003cbr\u003e-K20C Integra\u003cbr\u003e-Upgrade for Honda TC and TCR\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":41062131302537,"sku":"4P-K20C1-KPUMP-1","price":395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/K20C.4P.pump7copy.jpg?v=1763659633"},{"product_id":"4p-outlaw-ls-cnc-head","title":"4P Outlaw LS Non-VTEC CNC Cylinder Head","description":"\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eAvailable NOW!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt has been a long time coming.  After years of requests for us to develop a non-VTEC B18 LS cylinder head, we finally caved.  Our cylinder head development specialists spent countless hours using everything we have learned about 4 valve cylinder heads and our formula for our world record holding VTEC heads, and applied that expertise to this non-VTEC cylinder head.  The results are amazing, with increases in the flow range of over 60 CFM through the range on both the intake and exhaust ports on a stock sized valve!\u003c\/p\u003e\n\u003cp\u003eThis head is excellent for both all motor and turbocharged applications.\u003c\/p\u003e\n\u003cp\u003e4P Cylinder Heads hold more world records than all others combined.  SFWD World Record at over 1500hp, Outlaw FWD World Record at 2000hp, and ALL 7 second SFWD passes have been made on 4P CNC Cylinder Heads.\u003c\/p\u003e\n\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003eOEM or Bronze valve guides available\u003c\/li\u003e\n\u003cli\u003ePrecision CNC valve job using the latest NEWEN Fixed Turning technology\u003c\/li\u003e\n\u003cli\u003eResurface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll Motor Street and Race\u003c\/li\u003e\n\u003cli\u003eHigh Horsepower Turbo\u003c\/li\u003e\n\u003cli\u003eRoad Race\u003c\/li\u003e\n\u003cli\u003eGasoline, E85, Methanol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSlow-cut precision 5-axis CNC porting, second to none on machining quality.\u003c\/li\u003e\n\u003cli\u003eHigh velocity intake port design\u003c\/li\u003e\n\u003cli\u003eUnique power producing exhaust port design.\u003c\/li\u003e\n\u003cli\u003eProperly sized ports for responsive engines that accelerate your car faster than the competition.\u003c\/li\u003e\n\u003cli\u003eOur heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.\u003c\/li\u003e\n\u003cli\u003e280+CFM on stock size valve\u003c\/li\u003e\n\u003cli\u003e300+ CFM on +1mm valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eAll heads require a core! You can send us your head or purchase one from us at the current market price.\u003c\/b\u003e\u003c\/p\u003e","brand":"4 Piston Racing","offers":[{"title":"Default Title","offer_id":41215596527753,"sku":"4P-CNC-LS","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0343\/4800\/7561\/products\/B18B.10.jpg?v=1682271402"},{"product_id":"r40-k24z7-billet-timing-chain-cover","title":"R40 K24Z Billet Timing Chain Cover","description":"\u003cp\u003e\u003cstrong\u003eIN STOCK - this is no longer a pre-order\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIntroducing the R40 K24Z Billet Timing Chain cover.  Ever since Skunk2 released these we have loved to use them on our engines.  They look great and they make life easy on the dyno and at the racetrack when servicing your engine.  This is a product that Skunk2 innovated, and others have copied.  We like to honor and respect someone's innovation, so we collaborated with Skunk2 on this cover so that your Billet Side cover can say 4 Piston Racing and have a 4P tensioner cover.  Some of the new features include a built-in lower chain guide and an o-ring seal between the top and bottom sections.\u003c\/p\u003e\n\u003cp\u003eEach cover is CNC machined from billet 6061 aluminum and features a two-piece design which facilitates easy timing gear access and cylinder head removal. 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