These forged pistons are designed as an intermediate compression piston for engines with S&S Super Stock cylinder heads. These pistons can be used to increase the compression of S&S Sidewinder kits for HD Evolution engines and in S&S engines with Super Stock cylinder heads. They are designed to be used in 4-1/4", 4-1/2", and 4-5/8" stroke engines with stock (8-1/2") diameter flywheels, and in 3-13/16" and 4-3/4" stroke engines with small (8-1/4") diameter flywheels. 3-5/8" bore. Made from high strength low silicon forging for racing applications. Small Diameter Flywheels. Piston kits include set of pistons, rings, wristpins, and clips.
- air_freight_prohibited:
- false
- not_carb_approved:
- true
- carb_acknowledgement_required:
- true
- ltl_freight_required:
- false
- prop_65:
- Unknown
- part_type:
- powersports
- epa:
- N/A
- regular_stock:
- false
