Holley SBF Cylinder Heads

Holley aluminum (356-T6) cylinder heads are light in weight, but heavy on performance.  The intake and exhaust runners are sized to help your engine produce optimum power.  Three-angle valves are designed to provide higher flow rates, excellent response and superior intake and exhaust flow.  The combustion chambers are Pro-E engineered to deliver the best combination of torque and horsepower.  Heavy-duty valve springs insure high RPM reliability and performance.