The Wiseco RED Series forged piston set for Chevrolet Small Block 400 applications is an eight‑piston kit sized to a 4.135 in. bore and 1.425 in. compression height for specific performance configurations. Constructed from 2618 aluminum and fully machined, the pistons feature horizontal slot oiling for wrist pin lubrication, ArmorGlide skirt coating to cut friction and wear, premium rings included, and an accumulator groove to help ensure a consistent ring seal in demanding service.
Wiseco RED Series Chevy Small Block 400 4.135in Bore 1.425in CH -21.00 CC Piston Set