with forged pistons, a hot cam, and special cast-iron exhaust manifolds that fed into 2 1/4" exhausts and mufflers that had their baffles removed for improved flow. The Ford Fairlane 427's engine ...

Ford later offered the 427 back to Shelby for use in the Shelby ... bottom redesign of the 351 and included a new block, valves, pistons, and camshaft. The heads were carried over from the Windsor ...