Combining the power of Ford’s short-stroke V8 with the nibleness of AC’s sporting chassis, the Cobra was the first largely successful English-American hybrid. The whole project was motivated by legendary driver Carol Shelby, who refined and raced the car with funds from Ford.
In what some have called a desperate move, AC Cars accepted a deal to modify their Ace chassis to accept Ford’s V8 engine. They shipped bare chassis to Shelby American where they were initially fitted Ford’s 260 cu in. engine. The V8 worked well within the spacious engine bay, so much so, Shelby moved to the 289 unit in 1964
AC Cobra 289