KB Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc SC04201 The use of factory mounting

The use of factory mounting locations ensure a quality fit while maintaining a simple

Has a set screw in the base plate for wide open throttle stop adjustment

95-durometer polyurethane bushings limit engine movement without excessive NVH

15 x 10 in

1980-1981 GMC P3500

KB Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc SC04201 The use of factory mountingProduct Description: Piston KB Series Hypereutectic 4. 040 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 5. 00 cc Small Block Mopar 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