With 45 x 37.5mm Stainless Steel valves, CNC Porting, Dual Hi-Rev Springs, Chromoly Retainers, and SUPERGRIP™ Valve Locks. 94mm Bore.

The Super Pro is a horsepower making machine! The larger 45mm intake flows an incredible 224 CFM, but still retains great port velocity with its 81cc intake port. This head produces huge horsepower on N/A engines. Great for hot street cars and bracket race cars.

Available in 94mm bore with 45mm intake and 37.5 exhaust valves.

Heads are sold as a Pair

- Specify Camshaft & Rockers (Brand and Ratio) when ordering! (Sold Separately)

WARNING: Due to inconsistent advertised rocker arm ratios, it's imperative to check total lift and ensure you have a minimum of .050" from coil bind before final engine assembly.