🏷️ Basic Information Identification Make: Chevrolet Model: Corvette Year: 1968 Engine Designation: 350 cu in (5.7 L) V8 Codes Vin Structure Start Year: 1968 Vin Position For Year: Second digit (1=1968) 👋 Introduction Market Position Positioning: The 1968 Corvette was a significant evolution of the Sting Ray, offering increased performance and refined styling. This manual targets owners and mechanics seeking in-depth technical knowledge for maintenance and restoration. Competitive Analysis Comparative Advantage: This workshop manual provides more detailed technical information than a typical owner's manual, bridging the gap between basic user guidance and factory service bulletins. Key Features Manual Features: Extensive diagrams, troubleshooting flowcharts, torque specifications, and step-by-step repair instructions. 📋 Manual Details Coverage Areas All Models Engines Trims Transmissions: Yes Page Count Estimated Pages: 900+ Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Full Engine Overhaul, Tune-up, Lubrication, Cooling System, Fuel System, Exhaust System, Ignition System, Emissions Control (where applicable) Transmission: Manual Transmission (Muncie 4-speed), Automatic Transmission (Turbo Hydra-Matic 3-speed), Clutch System, Driveshaft, U-Joints Brakes: Hydraulic System, Disc Brakes (Front), Drum Brakes (Rear), Parking Brake, Master Cylinder, Wheel Cylinders, Brake Lines and Hoses Suspension Steering: Front Independent Suspension (Coil Springs, Control Arms, Ball Joints), Rear Independent Suspension (Trailing Arms, U-Joints), Steering Gearbox, Power Steering System, Wheel Alignment Electrical: Wiring Diagrams, Battery, Charging System (Alternator), Starting System (Starter Motor), Ignition System Components, Lighting System, Gauges and Instruments, Horn, Wiper System, Radio System Body Chassis: Frame, Body Panels, Doors, Hood, Trunk, Bumpers, Glass, Interior Trim, Seat Belts, Convertible Top Mechanism, Weatherstripping Procedures Included Maintenance: Oil Change, Filter Replacement, Spark Plug Replacement, Fluid Level Checks, Lubrication Points, Belt Adjustments, Air Filter Replacement Troubleshooting: Diagnostic Charts, Symptom-Based Troubleshooting for Engine, Electrical, and Mechanical Issues Repair: Engine Rebuild, Transmission Rebuild, Brake System Overhaul, Suspension Component Replacement, Electrical Component Repair/Replacement, Body Panel Repair Disassembly Assembly: Step-by-step instructions for component removal and reinstallation with torque specifications Technical Depth Depth: Comprehensive; suitable for professional mechanics and advanced DIY enthusiasts. Covers detailed diagnostics and rebuild procedures. 📊 Manual Specifications File Format PDF Quality: High-resolution scans, typically with searchable text (OCR) for easy navigation. Print Quality Printability: Designed for digital viewing but can be printed for workshop use. Page layout optimized for clarity. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: L46 (350/300 hp), L36 (427/390 hp), L68 (427/390 hp Tri-Power), L71 (427/435 hp Tri-Power), L88 (427/430 hp - Special Order) Displacement: 350 cubic inches (5.7 Liters) and 427 cubic inches (7.0 Liters) Performance Horsepower: Ranges from 300 hp (350 CI) to 435 hp (427 CI Tri-Power) Torque: Varies by engine; e.g., 360 lb-ft for L46 (350/300hp) Fuel System Carburetion: Single 4-barrel carburetor (e.g., Rochester Quadrajet for 350), Tri-Power (3x2-barrel carburetors) for L68/L71 427 models Fuel Type: Unleaded gasoline (required due to unleaded fuel introduction) Internal Components Bore X Stroke 350: 4.00 in x 3.48 in Compression Ratio 350: 10.25:1 (L46) Lubrication Oil Capacity: 5 US quarts (4.7 Liters) with filter (typically) 🔧 Transmission Standard Standard Transmission Base: Muncie SM465 4-Speed Manual Optional Optional Transmission: Turbo Hydra-Matic 350 (3-speed Automatic) Features Clutch Type: Single dry plate, diaphragm spring (for manual) Automatic Features: Torque converter, column or floor shift linkage Gear Ratios Muncie 4 Speed Ratios: Typical ratios: 2.20, 1.71, 1.31, 1.00 (Low gears vary slightly by application) 📐 Dimensions Exterior Length: 174.7 inches (4437 mm) Width: 69.1 inches (1755 mm) Height: 47.8 inches (1214 mm) (Coupe) Wheelbase: 98.0 inches (2489 mm) Weights Curb Weight Approx: 3,000 - 3,300 lbs (1360 - 1497 kg) depending on engine and options 🛡️ Safety Features Ratings Crash Test Data: No standardized NHTSA or IIHS crash test data available for this era. Safety features were basic. Active Features Active Safety Features: Four-wheel hydraulic disc brakes (standard front, optional rear), dual-circuit brake system. Passive Features Passive Safety Features: Lap and shoulder belts (standard for 1968), padded dashboard, energy-absorbing steering column. 💡 Technology Features Infotainment Audio System: AM/FM Radio (optional), AM/FM Multiplex Radio (optional). Speaker configuration typically two front, sometimes rear. Driver Assistance Driver Aids: No modern electronic driver assistance systems. Focus is on mechanical control and driver skill. Connectivity Connectivity Features: None. Analog gauges and mechanical systems only. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000 miles or 6 months, though older engines may benefit from more frequent changes. Tune Up Interval: Spark plugs, points, and condenser every 10,000 - 15,000 miles. Transmission Fluid Change: Manual: Inspect regularly, drain/refill as needed (e.g., 30,000 miles). Automatic: Change fluid and filter every 24,000 miles. Fluid Specifications Engine Oil Type: API SF or SG classification, SAE 10W-30 or 10W-40 recommended for general use. Consider higher zinc content for flat-tappet camshafts. Coolant Type: Ethylene glycol-based antifreeze with distilled water (50/50 mix). Check owner's manual...