MARK II: CHEVY’S MYSTERIOUS 427!

MARK II: CHEVY’S MYSTERIOUS 427!
The real 427 Mystery Motor, unlike the Z11, was not available in a car, or to the public. You had to have serious NASCAR cred to get one of the 20 built. In the 1960s, Semon “Bunkie” Knudsen always seemed to be one step ahead of GM Chairman Fred Donner’s anti-racing missives. While running Pontiac, he had supported the Super-Duty Group that later, after he left, managed to get 421 Catalina Lightweights to drag racers before the axe fell. Then he moved on to Chevrolet in 1961 and supported the R...
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