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All about performance

The focus of this story is the introduction of the all-new "GT 500" Shelby Mustang that debuted for the 1967 model year.

The increase in body width provided for a much needed wider engine compartment, allowing room for the big block engine. With the upgraded engine came a weight penalty of about 130 pounds upfront, which did not help handling and as compared to the standard 289 small block cars. Spring rates on the front coils were uprated to handle the extra load.

While the Shelby Mustangs were named "GT 350" this all-new big block car for 1967 was labeled "GT500" and it was an exciting way of adding a higher horsepower version to the Shelby line.

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