In terms of sheer horsepower, the 1960s were truly the golden decade for American cars ... that Ford developed one of the most iconic engines in motorsport history: the 427 cubic-inch V8.

By 1969, the Ford Mustang could be anything from a dressy six-cylinder coupe to a high-powered Boss 429 fastback with a NASCAR-ready V-8 engine ... model, but in reality, it was an all-new car ...