Classic Car Archive Specs, Facts, & History
The Chevrolet Corvette (C4) was a sports car produced by the Chevrolet division of General Motors for the 1984 through 1996 model years.
The editors of Consumer Guide stated: "The first fully redesigned Corvette in 15 years was more sophisticated and more practical than the beloved Shark.
The 1987 Corvette coupe and convertible saw several noteworthy changes. Chevy’s continuing quest for reduced engine friction in the interest of both performance and economy resulted in rollers being added to the hydraulic lifters, along with rocker-arm covers with raised rails to forestall oil leaks. Thanks chiefly to the former, horsepower went up by 10, to 240 in all, and torque improved by 15 lbs/ft, for a total of 345.
A six-way power passenger’s-seat option was now offered (matching the standard driver’s item), and major body and mechanical components were given special identification marks to further foil thieves.
A second suspension option was made available only on manual-transmission-equipped coupes; designated Z52 and priced at $470, this was essentially a softer version of the Z51 package, with the wider (9.5-inch) wheels, plus a solid and thicker front anti-roll bar, the new gas-charged shocks, quick-ratio steering, and all but one of the chassis stiffeners developed for the convertible. A thicker-core radiator and a second electric cooling fan were also included. Spring rates and bushings were carried over from the base chassis.
The racing-oriented Z51 suspension, listing at $795 for 1987, had all the Z52 hardware but much stiffer springs and front lower-control-arm bushings, plus a solid (instead of link-type) rear stabilizer. Enthusiast magazines praised the new suspension for the improved ride quality with only the most minor differences in handling characteristics.
With prices now starting at $27,999 for the coupe and $33,172 for the ragtop, critics felt the Corvette was becoming too pricey for its own good, though it was still perceived as being a better value than the European exotics of the time.
Though not a factory option, speed-hungry buyers could order a car with a new Callaway Twin-Turbo Engine package through participating dealers. Designated as RPO B2K, and priced at a budget-busting $19,995, the twin-turbo was rated at 345 bhp and 465 lbs/ft of torque and could reach a top speed more than three times the legal limit, all the way to 177.9 mph with .60 overdrive gearing. These were specially modified Corvette engines (except for the first four off the line, which used GM truck shortblocks); cars would be shipped from Bowling Green to Callaway Engineering in Old Lyme, Connecticut, for modification.
Corvette sales continued their downward trend on the 1987 model year but exactly 184 well-heeled buyers opted for the Callaway twin-turbo version.
|Engine||0 to 60 MPH||Quarter Mile||Source|
|350 cu in 240hp||5.6||13.9 @ 105 mph||Simulation|
|350 cu in||350 cu in||Injection||240hp @ 4000rpm||330lb-ft @ 3200rpm|
Ask Corvette expert Richard Ehrenberg