Engine - Cylinder Heads - Pontiac Super Duty Cylinder Head (Large Port) 1965-90

From GM Performance - Pontiac Motorsprots aluminum cylinder heads for big block V8s have high flow 460cc intake runners which are raised and relocated to enhance airflow. This head is designed for Pro Stock and similar all out racing engines which range in displacement from 450 to 600 cubic inches. Its advanced runner design eliminates the need for extensive porting to achieve maximum performance.