KB Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc 103182 Mopar Licensed Horn ButtonSince 1962

Mopar Licensed Horn ButtonSince 1962

Main Well Plugs

Dual 3-1/2 in Diameter Pipe

Valve spring upgrade required

KB Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc 103182 Mopar Licensed Horn ButtonSince 1962Product Description: Piston KB Series Hypereutectic 4. 040 in Bore 5 64 x 5 64 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