JE 257966S Piston Single (4.530 in. Bore, 1.270 in. CH, -3.00 CC) for CHEVROLET Big Block Engine ymm_37 Supports 200 - 350 HP

Supports 200 - 350 HP applications

Built-in track database

Performance: improved engine response

Direct Service Replacement for 815637-5015S

JE 257966S Piston Single (4.530 in. Bore, 1.270 in. CH, -3.00 CC) for CHEVROLET Big Block Engine ymm_37 Supports 200 - 350 HPDescription JE 257966S Piston Single (4. 530 in. Bore, 1. 270 in. CH, 3. 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