KB Piston Hypereutectic 4.156" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 15.0 cc 28115BK Available in Thin and Medium

Available in Thin and Medium thicknesses

2004-2006 Ford F-150

The RZ-42Y is the ultimate youth helmet

Outflows factory intake by 55%

An additional air deflector is required when switching from 2 barrel to 4 barrel carburetors

KB Piston Hypereutectic 4.156" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 15.0 cc 28115BK Available in Thin and MediumProduct Description: Piston KB Series Hypereutectic 4. 156 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 15. 00 cc Oldsmobile V8 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