1989 Chevrolet Corvette ZR-12 Falconer HatchBack Coupe

In 1990 GM wanted to know how strong the Corvette chassis actually was. To test this, they took a ZR-1 and fitted a big Falconer V-12 race engine in it. The V-12 engine, a derivative of the Chevrolet small block V8, is predominately setup for truck and marine applications. Typically an engine of this type would use a 72 degree V-angle, but with the 90 degree angle uneven firing intervals are achieved.

Dry, cast iron cylinder sleeves provide durable bore surfaces and piston displacements ranging from 300 to 641 CID. The fuel and air mixture occurs within a short-runner intake manifold and is distributed with electronically controlled injectors. In order to accommodate the massive 600 CID, all aluminum engine, the engine compartment was stretched by eight inches, which added less than one hundred pounds to the cars curb weight.

This power-packed Corvette was an experimental vehicle developed to explore the limits of the Corvette's chassis design envelope.
The engine has 686 horsepower and 600 ft-lbs of torque.

This example is currently on display at the Corvette Museum in Bowling Green, KY.

Source - Corvette Museum