The Edelbrock Performer RPM cylinder head for 1958–1965 Chevrolet "W" Series 348/409 big-block engines is aimed at street performance, delivering usable power and strong throttle response from 1,500–6,500 rpm. It includes high-quality intake and exhaust valves and valve springs and a thicker deck surface for durability. Intended for pre‑pollution controlled vehicles, it offers a practical upgrade for classic muscle applications.
Edelbrock Cylinder Head BBC Performer RPM 348/409Ci for Hydraulic Roller Cam Complete