had the six-cylinder engine. Yenko Novas Retired race car driver and muscle car specialist Don Yenko of Yenko Chevrolet in Canonsburg, Pennsylvania, refitted a series of third-generation Novas, as well as Chevelles and Camaros for optimum performance to compete with the frontrunning Ford Mustangs, Plymouth Barracudas and Dodge Challengers. The specially redesigned Nova (sometimes known as the "Yenko Supernova") had a stronger body frame and suspension system to house the powerful and heavy 427cid (7.0 L) V8 engine that powered the Yenko Super Cars. Only 37 were known to be produced with an original selling price of $4,000.00. Today, only seven units are registered and known to exist. In 1970, emissions standards and fuel economy were taking a toll on muscle cars. To counter this, Yenko requested a high-output Chevy 350cid V8 in his special line of Novas, the same engine that the new Z-28 Camaro and LT1 Corvette shared. Additionally, the new "Yenko Deuce", as it was known, had extensive suspension, transmission, and rear axle upgrades along with some very lively stripes, badges, and interior decals. Facelift (1973–1974) The 1973 model year introduced a hatchback body style based on the 2-door coupe. The front and rear of the Nova were restyled, following a government mandate for vehicles to be fitted with front bumpers capable of withstanding impacts and rear bumpers capable of absorbing impacts. To go along with the bigger bumpers, stylists gave the Nova a new grille with a loosely patterned crosshatch insert and parking lights located inboard of the headlights. In 1974, the rear bumper could absorb 5 mph impacts. Fuel tank capacity increased to 21 gallons, which required a redesigned trunk pan where a circular section was stamped to house the space-saver spare tire used on hatchback models. An SS option remained available, but it was merely a $123 dress-up package that included a blackout grille and Rally wheels. It could be ordered with any of the Nova engines. 35,542 SS packages were installed, making 1973 the best-selling year for the option. A modified rear side window shape was also introduced, eliminating the vent windows on both two- and four-door models. A revised rear suspension was adapted from the second generation Camaro with multi-leaf springs replacing the mono-leaf springs used on Novas since the original 1962 model. By this time, six-cylinder and V8 engines were de rigueur for American compact cars, with the and V8s becoming