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The Ford 427 was listed an optional big block engine for 1967. However, very few if any GT500's actually left the factory with the 427. There is no documentation indicating any GT500's got a 427.
1967 GT 500- the first of the big block Shelby Mustangs
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From the factory, GT 500's came with 428 engines. A nice engine with some respectable horsepower but not in the class of a 427. John says this 427 easily puts out 500 horse power!
A 1967 GT 500 with a 427- one unique car
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