The Edelbrock Performer RPM marine-duty rectangular-port big-block Chevy cylinder head is built for marine rectangular-port BB Chevy marine applications, tuned for strong throttle response and power from roughly 1,500–6,500 rpm. These marine heads include quality intake and exhaust valves and springs and are recommended to pair with Edelbrock Performer RPM manifolds to match flow characteristics and installation needs in marine use.
Edelbrock Single Marine BBC Rect Port Head w/ Valves