Stripped of its original drivetrain, modified, and then neglected, this 1969 Ford Mustang Mach 1 Cobra Jet needs a second ...

A factory R-code car, this 1969 Ford Mustang Mach 1 lost its original 428-cubic-inch Cobra Jet V8 a few years ago. It now packs a 351 Windsor.

You can imagine the excitement shared between Shelby and legendary Ford executive Lee Iococca, as they stuffed the Mustang with a 428 cubic-inch (7.0-liter) Cobra Jet V8.

Vehicle technology has advanced considerably in the 50 years between the Mustang and the Shelby it’s trying to mimic. In 1969, the GT500’s massive 7-liter Cobra Jet V8 pushed 335 horsepower ...