Shelby/AFR 289/351 205cc Completed Cylinder Heads (Pair)

If you’re looking for a solid pair of street/strip heads for your performance vehicle, the Shelby/AFR 205cc aluminum cylinder head is your answer. With lightweight 8mm 2.080 intake valves, 1.600 exhaust valves this head moves tremendous volumes of air through conservative runner volumes, spelling big torque and horsepower numbers. With combustion chamber volume at 58cc accompanied by 70cc exhaust ports which are raised .125 higher than stock, The Shelby 205cc is the ultimate choice for 331 through 427 engines operating from 3500 RPM to 8000 RPM. WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov Bare heads:   Head Material A-356,T6 aluminum Valve diameters 2.08-inch intake;1.60-inch exhaust. Combustion chamber 58cc Valve guides 8mm; manganese bronze material. Exhaust port bolt Dual pattern Air flow, intake 310cfm w/28-inch @.700 lift Air flow Exhaust 233cfm w/28-inch @.700 lift Intake port volume 205cc Exhaust port volume 70cc Complete Heads in