KB Hypereutectic Piston 4.000" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc 21300XR-O #335910 manifold height: 6

#335910 manifold height: 6

Available in Women's sizes with a tailored fit designed specifically for women

Fits rear 5 feet of cargo area

bracket fits 3" diameter axle tube and will work with most 11

KB Hypereutectic Piston 4.000" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc 21300XR-O #335910 manifold height: 6Product Description: Piston KB Series Hypereutectic 4. 000 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