KB Hypereutectic Piston - 4.150 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 10.00 cc - Pontiac V8 (Set of 8) Motorcycle & ATV/UTV Gear Extended length cup helps keep

Extended length cup helps keep spring centered

2 Youth SFI 24

Square- BoreSince 1938

The chute launcher can be used from the slowest bracket car to Top Fuel cars

KB Hypereutectic Piston - 4.150 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 10.00 cc - Pontiac V8 (Set of 8) Motorcycle & ATV/UTV Gear Extended length cup helps keepProduct Description: Piston KB Series Hypereutectic 4. 150 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 10. 00 cc Pontiac V8 Set of 8 Created from a high silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while still being strong enough to withstand high compression and high temperatures. Each piston is engineered with race ready features like high upper compression ring locations, gas