Edelbrock Single Performer RPM Oldsmobile Big Block Cylinder Head (For Use w/ Flat Tappet Camshaft)

If you're looking to get more out of your big-block Oldsmobile engine, the Edelbrock Performer RPM Cylinder Head is a solid choice. This aluminum head is designed specifically for 1965-1976 Oldsmobile 400, 425, and 455 cubic inch V8 engines, especially those running a hydraulic flat tappet camshaft. It's a popular upgrade for street machines and muscle cars that want improved performance without going overboard.

Edelbrock has refined this head over previous designs, featuring a 77cc combustion chamber and larger intake valves that help improve airflow. The bowl blending has also been worked on for smoother flow into the cylinders. You'll find that the spark plug locations are moved slightly toward the exhaust valve, which helps optimize the combustion process. Plus, there's extra material above the intake ports, giving experienced builders more room for porting and custom work if you decide to go that route. This head also accommodates a factory-style mechanical fuel pump, which is a nice touch for maintaining originality or specific build needs.

These Performer RPM heads are cast and machined right here in the USA by Edelbrock. They come complete with high-quality intake and exhaust valves, along with the necessary valve springs, so you're getting a well-built package ready to go. Keep in mind that this head is not CARB approved and cannot be shipped to California. It's a significant upgrade for your big-block Olds, offering a noticeable improvement in performance and breathing for your engine.