KB Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.0 cc 11000403 18-gauge aluminized-steel case with 409

18-gauge aluminized-steel case with 409 stainless steel internals

1982-2002 Pontiac Firebird

Kickdown Cable

and zinc plated for maximum stopping power

KB Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.0 cc 11000403 18-gauge aluminized-steel case with 409Product Description: Piston KB Series Hypereutectic 4. 280 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 6. 00 cc Mopar B Series 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