The 1987 Callaway Corvette represents a defining chapter in American performance history, when independent engineering ingenuity pushed Chevrolet’s C4 platform into supercar territory. Equipped with Callaway’s legendary B2K twin-turbo package and an exceptionally rare John Greenwood aerodynamic conversion, this example combines period performance engineering with distinctive motorsport-inspired styling.
Only 184 Callaway Corvettes were produced with the Greenwood Aero package, making this configuration particularly desirable among collectors. The B2K conversion involved Chevrolet sending the Corvette directly to Callaway for modification before delivery to an authorized dealership. The Greenwood conversion dramatically transforms the C4’s appearance with distinctive front-end modifications, extended side aerodynamic components, lower bodywork, and a prominent rear wing. Twin hood nostrils provide additional airflow to the intercoolers, while polished BBS wheels and Callaway-specific badging reinforce its identity.
Twin-Turbocharged L98 Performance
At the heart of this Corvette is Chevrolet’s 5.7-liter L98 V8, upgraded with Callaway’s twin-turbocharging system to produce approximately 345 horsepower and an impressive 465 lb-ft of torque. Performance figures included a sub-four-second 0–60 mph time and a claimed top speed approaching 178 mph.
The engine compartment showcases Callaway’s sophisticated engineering, featuring intercoolers positioned above the engine, hood-integrated airflow ducts, and turbochargers mounted lower in the engine bay. Additional fuel injectors support operation under boost, while the factory suspension retains its original Koni components.
Power is delivered through Chevrolet’s distinctive Doug Nash 4+3 manual transmission, combining four conventional gears with electronically controlled overdrive in second, third, and fourth gears.
Red Leather Interior and Digital Technology
Inside, red leather upholstery and Greenwood wood trim complement the C4’s futuristic digital instrument display. The cockpit retains functional electronic gauges monitoring engine parameters, a Callaway boost gauge, and a Dolby-equipped Bose audio system.
The seats remain supple, while the switches, instrumentation, air conditioning, and other cabin functions operate as intended. Additional equipment includes a removable glass roof and a period-correct radar detector.
Road Performance and Collector Appeal
A road evaluation confirms that the twin-turbocharged L98 delivers smooth, substantial torque, with the overdrive system operating as intended. Functional instrumentation, even braking, and predictable road manners demonstrate that this Corvette remains more than a static collector piece.
Combining Callaway’s pioneering forced-induction engineering, John Greenwood’s unmistakable aerodynamic design, and exceptionally rare production specifications, this 1987 Corvette represents one of the most distinctive high-performance C4 configurations of its era.
Source: BulletmotorsportsInc
