Yenko produced the 427 Nova in 1969 only. There were around thirty built with only seven or eight that are accounted for today. This is the very first one produced.
This 1969 Yenko Nova was a car described by Don Yenko in one of his last interviews as “a beast, almost lethal, a car that they should not have produced; as they were skirting the edge of product liability when they built this car”. The Nova was not a COPO high performance 427 motor from the factory. It was built with a transplanted 427 motor as Yenko did with the 1967 and 1968 Camaros.
Although GM put factory 427s in Camaro’s and Chevelles, it is known that the GM factory apparently would not put a COPO 427 motor in a Nova. Why not? The most obvious reason would be just as Don Yenko describes himself; using the word “lethal”, and a matter of liability. The body weight of the Nova was less than that of a Corvette. Stuffing a high performance L72 427 Corvette motor in a car of less body weight certainly had to result in tire-smoking performance