JE 330121S Piston Single (4.530 in. Bore, 1.060 in. CH, 40.00 CC) for CHEVROLET Big Block Engine ymm_70 Dual-Pass High Performance Core with

Dual-Pass High Performance Core with 10 Cooling Tubes vs

including those with rotary engines

with Z car flow numbers improving by 27% over stock

which eliminates the turbulent center intersection of a standard X-Pipe while blending combustion pulses from both sides of the engine for increased performance and improved sound

JE 330121S Piston Single (4.530 in. Bore, 1.060 in. CH, 40.00 CC) for CHEVROLET Big Block Engine ymm_70 Dual-Pass High Performance Core withDescription JE 330121S Piston Single (4. 530 in. Bore, 1. 060 in. CH, 40. 00 CC) for CHEVROLET Big Block Engine JE Pistons applies over 75 years of experience to its range of premium forged racing pistons for European, import, and sport compact applications. Engineered, forged, and machined 100% in the USA, these pistons are Designed for each specific engine and racing application to provide durability and performance. Forged from 4032 aluminum for