Chevrolet’s Grand Sport Corvette already makes a healthy 460 horsepower stock. The Yenko/SC package nearly doubles that to 800 horsepower using a stroker kit, a supercharger, and Z06-grade internals. Wearing a name that terrorized muscle car competitors in the 1960s, this limited-run revival started at a $46,000 premium over the Grand Sport’s base price, with only a handful ever built.