When Bristol ceased building their 6-cylinder engine in 1961, AC's owner, Charles Hurlock, was approached by Carroll Shelby to use a Ford V8 in the Ace chassis, producing the AC Cobra in 1962. Production of the Ace ended the same year. The AC Cobra came in small block and later big block configurations. It was Ford's 289 that powered the winning car in the GT class at Le Mans in June 1964. At the time, the AC Cobra 427 was the fastest "production" car in the world.
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