Compared to the old Cobra Jet heads, the TFS head's intake port is one inch higher at the intake flange, where it has a 3.9-inch cross-section, as opposed to the CJ's 4.8 inches.

Ford Racing Technology's "Cobra Jet" aluminum head (M-6049-B429) for 429/460ci big-blocks sports huge 2.200-inch intake and 1.760-inch exhaust valves with 72cc chambers.

This compares to the 2.42-inch/1.72-inch valves used in the Cobra and Super Cobra Jet heads, and slightly smaller 2.19/1.66 in the Police Interceptor heads. A common upgrade for these base heads ...

Perhaps the best is the Ford Racing Cobra Jet head, ... Big-block Ford 429/460 aluminum, Edelbrock PN 61649 2.19/1.76-inch valves 75cc chamber 310cc intake port ...

Ford 429 Cobra Jet engines were fed by a 700 CFM Rochester carburetor. Larger intake and exhaust valves, 2.24 and 1.72 inches respectively, were housed in free-flowing cylinder heads with smaller ...

Ford 429 Cobra Jet engines were fed by a 700 CFM Rochester carburetor. Larger intake and exhaust valves, 2.24 and 1.72 inches respectively, were housed in free-flowing cylinder heads with smaller ...