Shelby 427 FE Aluminum Head - Completed (Pair)

Shelby Aluminum FE Heads are cast from A-356 aluminum, heat treated to T6 hardness level and precision CNC machined.  Patterned on Ford's famous 427 FE medium-raiser cast iron heads, Shelby FE heads offer leading edge air flow improvements, starting with standard 2.250-inch intake and 1.750-inch exhaust valve diameters. Due to valve size, the heads are suitable only for Shelby 427 Alloy FE or factory 427 cast iron blocks.  These heads utilize 14mm diameter, 3/4-inch reach, gasketed spark plugs positioned in the stock location.  A revised design with the valve locations moved, these heads will require custom pistons. They are sold in pairs, complete or bare.  Bare Heads: Head Material – A-356, T6 Aluminum Valve Diameters – 2.250-inch intake; 1.750-inch exhaust Combustion Chamber – Approx. 63cc as cast Valve Guides – 0.345-inch; manganese bronze material Exhaust port bolt – 16 bolt pattern Air Flow, Intake – 310cfm @ 28-inch H2O Air Flow, Exhaust – 210cfm @ 28-inch H2O Intake Port Volum