KB Claimer Series Hypereutectic Piston 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc 1425014 base manifold is CNC port

base manifold is CNC port matched to upper manifold for maximum power

25 in Diameter

our engine oil company pioneered the development of break-in oils

Safe for use with pump and race gas formulations on fuel injected applications with a maximum operating pressure of 100 PSI

KB Claimer Series Hypereutectic Piston 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc 1425014 base manifold is CNC portProduct Description: Piston Claimer Series Hypereutectic 4. 060 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 5. 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