Pro Action Small Block Chevy Aluminum Cylinder Head (23° Valve Angle)
Available Bare or Assembled
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 standard rockers arms are accepted.
Advanced port/runner/chamber design & modified water jacket for improved durability, optimal performance & added reliability
Standard features include multi-angle intake & radiused exhaust valve seats for up to 5% more flow than the competition