Positioning:
Essential diagnostic and repair resource for C3 Corvette owners and mechanics
Comparison:
Often considered the 'bible' for this generation of Corvette, superior to generalized repair guides
Features:
Detailed factory procedures, torque specifications, wiring diagrams, diagnostic flowcharts
Engine:
Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, emissions control
Transmission:
Automatic (THM350) and Manual transmissions (Laboratories), clutch system
Drivetrain:
Driveshaft, rear axle, differential
Suspension:
Front and rear suspension, steering system
Brakes:
Front disc brakes, rear disc brakes, parking brake, hydraulic system
Electrical:
Wiring diagrams, charging system, starting system, lighting, instruments, accessories, power windows, power seats
Body:
Body and frame construction, interior trim, exterior trim, doors, windows, seats, bumpers
HVAC:
Heating, ventilation, and air conditioning (HVAC) system
Maintenance:
Scheduled maintenance, oil changes, filter replacements, tune-ups
Troubleshooting:
Diagnostic charts, common problems and solutions
Repair:
Component removal, installation, overhaul, and adjustment procedures
Diagnostics:
Engine performance diagnostics, electrical system troubleshooting
Depth:
Comprehensive from basic maintenance to major overhauls and diagnostics
Displacement:
350 cu in (5.7 L)
Block Material:
Cast Iron
Cylinder Head Material:
Cast Iron
Bore X Stroke:
4.00 in x 3.48 in (101.6 mm x 88.4 mm)
Horsepower Net SAE:
190 hp @ 4500 rpm
Torque Net SAE:
285 lb-ft @ 2400 rpm
Fuel Delivery:
Rochester Quadra-Jet 4-barrel carburetor
Fuel Type:
Unleaded gasoline (87 octane recommended)
Ignition Type:
Electronic Spark Control (ESC) with knock sensor, Breakerless Electronic Ignition (for some models/markets)
Wheelbase:
98.0 inches (2489 mm)
Length:
185.8 inches (4719 mm)
Width:
70.5 inches (1791 mm)
Height:
47.9 inches (1217 mm)
Curb Weight:
Approx. 3,450 - 3,550 lbs (1565 - 1610 kg)
Gross Vehicle Weight Rating Gvwr:
Approx. 4,400 lbs (1996 kg)
Oil Change Interval:
Every 3,000-5,000 miles or 6 months (depending on driving conditions)
Transmission Fluid Change:
Every 30,000-50,000 miles
Coolant Flush:
Every 2 years or 30,000 miles
Engine Oil Type:
API SF, SAE 10W-30 or 10W-40 recommended
Engine Oil Capacity:
5 US quarts (4.7 liters) with filter
Coolant Type:
Ethylene Glycol (Green)
Common Problems:
Carburetor tuning and adjustment, vacuum leaks, aging electrical components, fiberglass delamination (rare), clutch wear (manual), transmission hard shifts (automatic).
Emissions Controls:
ECS system, catalytic converter, EGR valve require regular maintenance and potential replacement.
Heritage:
Continuation of the iconic Chevrolet Corvette lineage, America's Sports Car
Generation:
Third Generation (C3) - 1968-1982
Year Specific Changes:
1981 saw updated emissions controls, revised suspension tuning, and a move towards all-Corvette assembly in Bowling Green, Kentucky. Offered in Coupe and Convertible body styles.
Production Location:
Bowling Green, Kentucky, USA
Production Volume 1981:
40,606 units
Iconic Status:
Recognized as a significant model in Corvette's C3 era and a desirable classic sports car.
Classic Car Value:
Consistently holds value as a classic collectible, appreciating with good condition and originality.
Manual Quality:
Certified professional quality, aligned with factory service manual standards.
