4P Outlaw 370 H22 CNC Head

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  • Regular price $1,450.00
Shipping calculated at checkout.

The Outlaw 370 H22 is the newest addition to the 4P H-Series lineup.  We have taken design attributes from our world record setting K-Series program and applied those to the H22 head in order to create the meanest H head on the market for maximum All Motor horsepower.  This head features a +2mm intake valve that moves over 370cfm.  Beyond the flowbench, it features a custom intake and exhaust valve design  and uses the same throat and airspeed formula that has set multiple records over multiple racing series.

  • CNC Ported intake and exhaust ports
  • Oversized intake seats for a +2mm intake valve
  • OEM valve guides or optional bronze valve guides.
  • Precision CNC valve job using the latest NEWEN Fixed Turning technology
  • Resurface
  • This head requires custom intake valves.  You can source them yourself or we can provide them.

Recommended Use

  • All Motor Race
  • Suitable for 2.0-2.4L Road Race engines with a high rpm powerband in mind
  • Suitable for 2.3-2.7L Drag Race engines looking to produce maximum power.

Features & Benefits

  • Slow-cut precision 5-axis cnc porting, second to none on machining quality.
  • Others talk about big flow, but we have tested ALL others on the market.  They fall WELL short of our 370cfm flow on our flow bench in equal conditions, regardless of what they advertise.
  • 50 degree valve job for increased on-track performance
  • Unique power producing exhaust port design with up to 25cfm over our competition.
  • Intake port features a laid out short turn for superior air speed around the valve when compared to conventional tall short turn port designs.
  • Full length bronze manganese valve guide for valve stability.
  • Our heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.

All heads require a core! You can send us your head, or purchase one from us at the current market price.