Pistons and Piston Rings
Pistons and rings operate in a very explosive environment, so they have to be extremely tough. Chevrolet Performance pistons and rings are designed to withstand the rigors of high-performance engines. The pistons are factorytested for quality assurance. Chevrolet Performance pistons are sold in a variety of sizes and compression ratios. There are pistons for GM Big-Block engines ranging in displacement from 427 cubic inches to 572 cubic inches. Pistons are sold individually and are fitted with wrist pins.

NOTE: Part numbers are for one piston; order eight per engine.

Big-Block Piston Ring
Part Number: 12523923 
Bore Size: 4.250"
Oversize: +.030"
Ring Thicknesses: 5/64", 5/64", 3/16"
Description: Oversize ring pack for Gen V 454 HO