Direct bolt-on heads for Big Block Chevy Stock and Super Stock racers. No port profiling or bowl blending of ports.
Hand-Blended Intake and Exhaust Bowls. CNC-Matched Intake/Exhaust Ports in Std Location.
Thicker Deck Surfaces than Other Brands. Edelbrock 60549 Performer RPM Cylinder Head, Big Block Chevy.
Uses 14mm spark plugs with 3/4 reach, and flat gasket seals. Speedway Motors is America's Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 73 years.