ProMaxx Performance 2211: 320 Series Aluminum Cylinder Heads Big Block Chevy
320 Series Aluminum Cylinder Heads
320 Series Aluminum Cylinder Heads Big Block Chevy As-Cast 320cc Intake Ports 119cc Combustion Chamber 2.30'' Intake / 1.88'' Exhaust Valves 7/16'' Rocker Arm Studs .600'' Max Lift Steel Retainers Assembled, 2/pkg