The Callaway B2K Twin-Turbo Option. By 1987, Chevy had its fix in the works with the Callaway B2K option. This option added roughly $27K to the cost of a Corvette, bringing the out-the-door price ...

Sledgehammer: Callaway Engineering’s 880-HP, Twin Turbo, 254-MPH Street Corvette. Originally published in the April 1989 issue of Hot Rod magazine ...

In October 1988, Callaway drove the Sledgehammer from its Connecticut headquarters to the Transportation Research Center in Ohio to see just how fast the twin-turbo 'Vette could go flat-out.

The Sledgehammer also prefaced the end of the Twin Turbo era. By 1991, ... Today, the Callaway Twin Turbo cars represent a very special piece of Corvette performance history.

The result was the Callaway Twin Turbo Corvette, produced between 1987 and 1991 and packing a twin-turbocharged 5.7-liter V8 ...

The 5.7-liter L98 V8 in this vehicle produces 382 horsepower and 562 lb-ft of torque thanks to the B2K Callaway twin-turbo conversion, with power being sent to the rear wheels via a Doug Nash 4+3 ...

The 1988 Callaway Sledgehammer held a top speed record-smashing vehicle for 20 years with almost 900 hp. That was nearly double what a traditional Callaway twin-turbo Corvette was producing at the ...

Paired with a six-speed manual transmission, the twin-turbo Corvette also features Callaway’s Sledgehammer-inspired Aerobody, an original removable hardtop, black leather interior and more. The ...

Reeves Callaway created a monster in 1973 and ... 1988 Callaway Sledgehammer Corvette ... a Corvette built specifically to exceed all top-speed records while showcasing Callaway's turbo ...

This 1991 Chevrolet Corvette Callaway Twin-Turbo Convertible is one of just ... Connecticut-based Callaway Cars built its reputation with extreme modified Corvettes like the 1988 SledgeHammer, ...

In 1987, the $20,000 option code RPO B2K would turn your Chevy Corvette into a Callaway twin turbo supercar. Today, you can take a stab at owning this one.