KB Hypereutectic Piston 4.155" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 7.0 cc BR10021 Pushrod diameter: 5/16" (width of

Pushrod diameter: 5/16" (width of slot in guide plate)

The "Pure Unadulterated POWER" of DynoMax® Ultra Flo

Very true and strong

1968-1971 International M800

Universal magnetic base may be mounted anywhere

KB Hypereutectic Piston 4.155" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 7.0 cc BR10021 Pushrod diameter: 5/16" (width ofProduct Description: Piston KB Series Hypereutectic 4. 155 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves Minus 7. 00 cc Small 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