KB Claimer Series Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc H759C01XL Universal catalytic converters require welding

Universal catalytic converters require welding and/or fabrication and should be installed by qualified technicians

31 in W x 21 in H x 3 in D

intelligently engineered parts

18 in H x 18 in W Jig-built For Consistency

KB Claimer Series Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc H759C01XL Universal catalytic converters require weldingProduct Description: Piston Claimer Series Hypereutectic 4. 030 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