These heads deliver significant gains in both power and torque for all Small Block Chevrolet applications - right out of the box. Pro Action™ SBC Aluminum Heads are the perfect choice for a variety of performance engines, including street rod, muscle car, oval track and drag racing applications.
Standard features include a multi-angle Serdi valve job, cast aluminium construction, multi-angle intake and radiused exhaust valve seats for up to 5% more airflow than the competition. Advanced port/runner/chamber design and modified water jackets for optimal performance & added reliability. Valve springs up to 1.550" and all standard rocker arms and valve train components are accepted.
- 180cc Intake Runners and 64cc Combustion Chambers
- Angled spark plug holes
- 2.020" Intake and 1.600" Exhaust valve sizes
- Fully assembled with Comp Cams components for hydraulic roller cams up to .600" lift