🏷️ Basic Information Identification Make: Chevrolet Model: Corvette Generation: C3 (Third Generation) Body Style: Coupe / Convertible Codes Engine Code Primary: LS4 (454 CID V8) Vin Prefix: 1GZ07 👋 Introduction Market Position Positioning: Essential resource for owners and mechanics dedicated to maintaining or restoring the iconic C3 Corvette, particularly models featuring the formidable 454 cubic inch V8. Competitive Analysis Value Proposition: Offers a critical advantage over generic automotive repair guides by providing model-specific, in-depth technical data for the Corvette, saving time and preventing costly mistakes. Key Features Unique Selling Points: Extensive coverage of the 454 V8 engine, detailed troubleshooting for C3-specific electrical systems, and diagrams for often complex vacuum and fuel lines. 📋 Manual Details Coverage Areas Applicable Years: 1963-1983 Engine Coverage: 454 CID V8 (LS4 and related variants) Transmission Coverage: Manual & Automatic Transmissions (e.g., M20, M21, M40, TH400) Chassis Coverage: Frame, Suspension, Steering, Brakes Electrical Coverage: Wiring Diagrams, Lighting, Instruments, Accessories Body Coverage: Body Panels, Interior Trim, Doors, Glass Page Count Estimated Pages: 800-1200 (typical for comprehensive coverage) Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Management: Fuel Injection (C.I.S. for some years), Carburetion (Holley, Edelbrock), Ignition System, Cooling System, Lubrication System Drivetrain: Clutch, Transmission (Manual & Automatic), Driveshaft, Differential, Axles Suspension Steering: Independent Front Suspension (A-arms, Ball Joints, Springs), Rear Transverse Leaf Spring, Shock Absorbers, Power Steering System Braking System: Front Disc Brakes (Vented), Rear Disc Brakes, Power Brake Booster, Master Cylinder, Parking Brake Electrical System: Battery, Alternator/Generator, Starter, Lighting (Headlights, Taillights, Interior), Instrument Cluster, Gauges, Horn, Wiper System, Power Windows/Locks (if equipped) Body And Interior: Frame Construction, Body Panels, Doors, Hood, Trunk, Bumpers, Seats, Dashboard, Headliner, Convertible Top Mechanism Procedures Included Routine Maintenance: Oil Changes, Filter Replacements, Fluid Level Checks, Spark Plug Replacement, Belt Adjustments Engine Repair: Engine Rebuilds, Cylinder Head Overhaul, Piston/Rod Replacement, Crankshaft Service, Timing Chain/Gear Replacement Transmission Repair: Manual Transmission Gearbox Overhaul, Automatic Transmission Clutch Pack Replacement, Valve Body Service Suspension Steering Repair: Ball Joint Replacement, Bushing Replacement, Tie Rod End Replacement, Steering Box Adjustment/Rebuild Brake System Repair: Brake Pad/Shoe Replacement, Rotor/Drum Machining or Replacement, Caliper Rebuild, Brake Line Replacement, Power Booster Testing Electrical Diagnostics: Troubleshooting Electrical Faults, Component Testing, Wiring Harness Repair, Fuse/Relay Identification Bodywork Restoration: Panel Alignment, Rust Repair, Door Hinge Adjustment, Convertible Top Repair Troubleshooting Guides: Diagnostic Flowcharts, Symptom-Based Troubleshooting Technical Depth Depth: Comprehensive: from basic maintenance to complete overhauls and diagnostics. Diagnostic Level: Detailed diagnostic procedures for engine, electrical, and mechanical systems. Rebuild Procedures: Step-by-step rebuild procedures for major components like the engine, transmission, and braking system. 📊 Manual Specifications File Format File Type: Digital (PDF) Searchability: Searchable text content for quick information retrieval. Print Quality Resolution: High-resolution scans suitable for printing individual pages or the entire manual. Binding Type Binding: N/A (Digital format) Paper Type Paper Quality: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Family: Mark IV Big-Block V8 Displacement: 454 cubic inches (7.4 Liters) Bore X Stroke: 4.25 in x 4.00 in (108 mm x 101.6 mm) Compression Ratio Typical: 8.0:1 - 8.5:1 (depending on year and variant) Performance Horsepower Range Typical: 250 - 390 hp (SAE Gross, increasing complexity with year and emissions controls) Torque Range Typical: 400 - 490 lb-ft (SAE Gross) Fuel System Carburetion: Holley 780 CFM 4-barrel carburetor (standard on most 454 models); Edelbrock options available. Fuel Injection: Not standard on 454 models during this era; earlier C3s and some later models utilized carburetors. Ignition System Type: Point-type distributor with external coil (early years), transitioning to Electronic Ignition (HEI) in later years. Cooling System Capacity Typical: 24 quarts (22.7 Liters) with heater/A/C Lubrication System Oil Capacity Typical: 5 quarts (4.7 Liters) with filter 🔧 Transmission Standard Manual Transmission: Muncie M20 Wide-Ratio, M21 Close-Ratio 4-speed manual (often optional, but popular) Optional Automatic Transmission: Turbo Hydramatic 400 (TH400) 3-speed automatic Features Clutch Type: Single dry plate, hydraulic actuation (for manual transmission) Gear Ratios M20: 2.52:1 (1st), 1.88:1 (2nd), 1.42:1 (3rd), 1.00:1 (4th) Gear Ratios M21: 2.20:1 (1st), 1.66:1 (2nd), 1.31:1 (3rd), 1.00:1 (4th) Transmission Fluid Atf: Dexron III / Mercon (equivalent to GM specification) Transmission Fluid Manual: GL-4 Gear Lubricant (e.g., SAE 80W-90) 📐 Dimensions Exterior Length: 182.5 - 184.7 inches (463.5 - 469.1 mm), varies slightly by year Width: 70.8 inches (179.8 mm) Height: 47.7 inches (121.2 mm) Wheelbase: 98.0 inches (248.9 mm) Weights Curb Weight Approx: 3,700 - 4,100 lbs (1678 - 1860 kg), depending on options and body style Gross Vehicle Weight Rating: Not typically listed for sports cars of this era, but estimated around 4,500 lbs. 🛡️ Safety Features Ratings NHTSA Ratings: N/A (Vehicle safety standards and testing methodologies were different in this era; crashworthiness data is limited by modern standards). Active Features Braking System: Four-wheel disc brakes with power assist. Steering: Power steering standard on most 454...