KB Hypereutectic Piston 4.320" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 12.0 cc H775C30M Good For Up To 300

Good For Up To 300 Hp Naturally Aspirated

E85 & more)

Provides Accuracy And Durability In Harshest Environments

1968-1972 Oldsmobile F85

KB Hypereutectic Piston 4.320" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 12.0 cc H775C30M Good For Up To 300Product Description: Piston KB Series Hypereutectic 4. 320 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 12. 00 cc Big Block Chevy 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