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HomeCar CultureGM considered taking on the Dodge Viper with a V-12-powered Chevrolet Corvette...

GM considered taking on the Dodge Viper with a V-12-powered Chevrolet Corvette (video)

Powered by a 600cid V12 that produced 686 horsepower

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Sporting an 8.0-liter V-10, the original Dodge Viper seriously outgunned the contemporary Chevrolet Corvette C4. So General Motors decided to drop a V-12 into the ‘Vette as a possible way to compete.

First spotted by Road & Track, this video from YouTube channel DtRockstar1 shows the V-12 Corvette prototype—dubbed “ZR-12″—at the National Corvette Museum in Bowling Green, Kentucky. The prototype is fully drivable, and sounds fantastic.

That sound is generated by a 600-cubic-inch (roughly 10.0-liter) V-12 built by Ryan Falconer Racing Engines. The all-aluminum engine produced a claimed 686 hp and 680 lb-ft of torque when new—eclipsing the contemporary Viper’s 400 hp and 450 lb-ft of torque—and weighed about the same as an iron-block V-8.

Per the video, the ZR-12 also managed an 11.6-second quarter mile run at 133 mph in a March 1993 Motor Trend test.

When new, the ZR-12 even had Viper-like side pipes, although these were subsequently removed. Today, the car has a dual exhaust system more like that of a stock C4 Corvette. The wheels were changed at some point as well.

chevrolet corvette, GM considered taking on the Dodge Viper with a V-12-powered Chevrolet Corvette (video), ClassicCars.com Journal
Chevrolet Corvette ZR-12 prototype (via DtRockstar1 on YouTube)

The ZR-12 never went into production. Chevy had already spent a lot of time and money developing the 380-hp V-8 Corvette ZR-1, which, along with later Z06 and ZR1 (minus the hyphen) variants, took the fight to the Viper. Today, the Viper is gone, but Chevy is about to launch the 2023 Corvette Z06 with a 670-hp flat-plane crank V-8. Future Corvettes are expected to use a hybrid powertrain, combining a V-8 and electric motors, and an all-electric powertrain, for extra power, so it’s unlikely that we’ll ever see another factory-backed attempt at a V-12 Corvette.

This article was originally published by Motor Authority, an editorial partner of ClassicCars.com.

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