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1987 Callaway Corvette - Project "Sledgehammer"

All 1987 Callaway-modified Corvettes have manual transmissions and none were California certified. Of the 184 built in 1987, 121 are coupes and 63 are convertibles.

Engine

   
Type Turbocharged and intercooled V8 iron block and aluminum heads    
Bore/Stroke 4.00 x 3.48-inches    
Displacement 350 cubic inches    
Compression 7.5:1    
Cooling System GM Chevrolet electronic control system with port fuel injection and Callaway Micor-Fueler    
Emissions Controls 3-way catalytic converter feedback fuel-air-ratio control, exhaust gas recirculation (EGR), and auxiliary air pump    
Turbochargers Two Warner-Ishi RHB 52W    
Waste Gate Integral    
Valve Gear Pushrod with hydraulic lifters    
Horsepower 345 bhp % 4000 RPM    
Torque 465 lb-ft @ 2800 RPM    
Redline 5500 RPM    




Transmission

4-Speed Manual with electronic overdrive
Gear Ratio MPH/1000 RPM Max Speed @ RPM
1st 2.88 8.5 47 @ 5500
1st O.D. 1.73 14.1 42 @ 3000
2nd 1.91 12.8 70 @ 5500
2nd O.D. 1.15 21.3 117 @ 5500
3rd 1.33 18.3 101 @ 5500
3rd O.D. 0.80 30.5 122 @ 4000
4th 1.00 24.4 122 @ 5500
4th O.D. 0.60 40.6 161 @ 3950




Dimensions and Capacities

 
Wheelbase 96.0 inches
Track, Front / Rear 59.6 inches / 60.4 inches
Length 176.0 inches
Width 71.0 inches
Height 46.0 inches
Frontal Area 19.1 sq. ft.
Ground Clearance 4.4 inches
Curb Weight 3,304 lbs.
Weight Distribution F / R 51.5% / 40.5%
Fuel Capacity 20.0 gallons
Oil Capacity 4.5 quarts    
Water Capacity 14.6 quarts    
Fuel Economy EPA City - 17 mpg
EPA Highway - 24 mpg
Combined - 19.0 mpg