SBM Performer RPM Magnum Cylinder Head - Assm.

The Edelbrock SBM Performer RPM Magnum Cylinder Head Assembly is designed for automotive enthusiasts and builders looking to enhance small-block performance without the need for a complete engine rebuild. This bolt-on upgrade improves airflow, combustion efficiency, and horsepower across the RPM range, making it suitable for street cruisers, weekend warriors, and bracket racers alike.

Featuring optimized port design and combustion chamber geometry, the Performer RPM Magnum head enhances volumetric efficiency at higher RPMs while maintaining low-end torque. The assembly includes CNC-ported runners and hardened valve seats, ensuring reliable performance and longevity. Its construction is typically aluminum, which provides a good balance of weight and heat dissipation.

Ideal for small-block Chevrolet and similar SBM platform engines, this cylinder head assembly is a straightforward bolt-in solution for existing block and crankshaft combinations. Proper installation requires verification of valve-to-piston clearance and gasket surface preparation to achieve optimal performance and sealing.