Yenko Nova 427
In the late ’60s, Yenko became famous for a lineup of high-performance Camaros, Chevelles, and Novas. They featured the 427 V8 engine, which was not available from the factory. Also, all Yenko cars came with a special stripe on the hood and on the sides and the lettering “sYc” for “Yenko Super Cars.”
Among those fire-breathing machines, the Yenko Nova was the rarest and produced in just a handful of examples. It debuted in 1970, and Don Yenko put the most powerful Chevrolet engine into the lightest body he could find. However, after initial testing, he decided to stop production since he realized the Yenko Nova 427 was practically lethal (via Motor Trend).