We do typically keep these in stock. If you order a custom bore size, it is 4 to 6 weeks lead time on all custom pistons.
4P Wiseco Pro Endurance Pistons
The 4P Wiseco Pro Endurance pistons can be used in drag racing or endurance road racing. They also work in street cars. These are extremely lightweight, but rigid with their strutted box forging providing a great ring seal despite their short skirt. This piston allows you to run a long rod with its raised 18mm tool steel wrist pin. This is a 3 ring piston. Weight varies from 255 grams to 280 grams depending on the bore size. Calculate your compression based on a 9.8cc dome.
Bore sizes range from 86mm up to 90mm. The 86 through 88mm are the pistons that are purpose built for our K330 2.0L Spec Road Race Engine (86mm specifically). The larger sizes are what we use in our K400 2.5L Road Race Engine (89.5mm specifically).