KB Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc R010003 1 in Taller

1 in Taller

Adjustable valvetrain required

Guaranteed not to lose more than 1% of free height

Centerlink Stud

2-1/2 in Outlet

KB Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc R010003 1 in TallerProduct Description: Piston KB Series Hypereutectic 4. 060 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