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Corvette

Corvette 427 1979 Workshop Repair Service Manual

Corvette 427 1979 Workshop Repair Service Manual

$16.99
$16.99
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Vehicle data plateRef 453413
Brand
Corvette
Vehicle
Cars
Models covered
427, Chevrolet, Misc
Years
1979
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

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🏷️ Basic Information
Identification
Make:
Chevrolet
Model:
Corvette
Year:
1979
Trim:
427 (Implied High-Performance Engine)
Vin Structure:
1G1 (Chevrolet Division, Corvette), Year (9 for 1979), Assembly Plant (2 for St. Louis), Sequential Production Number.
Codes
Model Code:
C3 (Third Generation)
👋 Introduction
Market Position
Market Position:
Iconic American sports car, representing performance and style of its era.
Competitive Analysis
Competitors 1979:
Datsun 280ZX, Porsche 924, Jaguar XJ-S, BMW 3 Series.
Key Features
Key Features Vehicle:
Removable T-top roof panels, rear-mounted spare tire, powerful V8 engine options, fiberglass body construction.
Key Features Manual:
Authoritative, factory-level repair and maintenance guidance, essential for preserving and restoring a classic Corvette.
📋 Manual Details
Coverage Areas
Systems Covered:
Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Fuel System, Cooling System, Electrical System, Ignition System, Emissions Control, Body and Frame, Interior Components, HVAC, Chassis Lubrication, Diagnostic Procedures, Troubleshooting.
Page Count
Estimated Page Count:
1000+
Manual Type
Manual Type:
Workshop Repair Service Manual
Language
Language:
English
Format
Format:
PDF Download
📖 Manual Coverage
Systems Covered
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures for all applicable engine variants.
Transmission Service:
Detailed instructions for manual and automatic transmission maintenance, repair, and overhaul.
Electrical Diagnostics:
Comprehensive wiring diagrams, component testing, and troubleshooting for all electrical systems including lighting, instruments, and accessories.
Brake System Repair:
Service procedures for disc brakes (front and rear), hydraulic systems, parking brake, and related components.
Suspension And Steering:
Diagnosis and repair of independent front suspension, rear trailing arm suspension, steering linkage, and power steering system.
Procedures Included
Preventative Maintenance:
Scheduled maintenance tasks, fluid level checks, filter replacements, and component inspections.
Troubleshooting Guides:
Systematic diagnostic trees and procedures for identifying and resolving common and uncommon faults.
Component Replacement:
Step-by-step instructions for replacing major and minor components across all vehicle systems.
Alignment Specifications:
Detailed alignment angles and procedures for ensuring proper handling and tire wear.
Torque Specifications:
Critical torque values for all fasteners to ensure proper assembly and prevent damage.
Emissions Control Servicing:
Procedures for maintaining and diagnosing the emissions control systems, including catalytic converter and EGR (Exhaust Gas Recirculation) if equipped.
Technical Depth
Depth Of Coverage:
Comprehensive, from basic maintenance to full engine and transmission rebuilds, including electrical troubleshooting and bodywork repairs.
Diagnostic Tools:
Covers the use of basic diagnostic tools and techniques common for the era, focusing on electrical testing and mechanical measurement.
📊 Manual Specifications
File Format
File Format:
High-resolution PDF
Searchability:
Fully searchable text for quick access to information.
Print Quality
Print Quality:
Printable at home or professional print shop.
Binding Type
Binding Type:
N/A (Digital PDF Download)
Paper Type
Paper Type:
N/A (Digital PDF Download)
⚙️ Engine Specifications
Primary Engine
Engine Type:
V8, pushrod overhead valve (OHV)
Engine Displacement Cu In:
350 cu in (5.7L) - Standard C3 engine. The '427' designation likely refers to a performance variant, though the actual 427ci Big Block was not offered in 1979. High-performance 350ci engines were available.
Engine Displacement Liters:
5.7L (350 ci)
Engine Block Material:
Cast Iron
Cylinder Head Material:
Cast Iron
Performance
Horsepower Gross Std 350:
195 hp @ 4000 rpm (L48 standard 350)
Torque Gross Std 350:
285 lb-ft @ 2400 rpm (L48 standard 350)
Horsepower Gross Optional 350:
225 hp @ 4000 rpm (L82 high-performance 350)
Torque Gross Optional 350:
285 lb-ft @ 3200 rpm (L82 high-performance 350)
Fuel System
Fuel Delivery:
Rochester Quadrajet 4-barrel carburetor (standard), optional Holley 4-barrel for L82.
Fuel Type:
Unleaded Gasoline
Ignition System:
Electronic Ignition (HEI - High Energy Ignition) distributor.
Engine Codes
Engine Codes Offered:
L48 (220hp net, 350ci), L82 (225hp gross, 350ci, higher compression, performance camshaft, dual exhaust).
🔧 Transmission
Standard
Transmission Type Std:
4-speed Manual Transmission (Muncie SM465 or Saginaw) - availability varied by engine.
Optional
Transmission Type Opt:
3-speed Turbo Hydra-Matic Automatic Transmission (THM350 or THM400 depending on engine/driveline).
Features
Transmission Fluid Spec Auto:
Dexron III Automatic Transmission Fluid (ATF).
Transmission Fluid Spec Manual:
GL-4 Gear Oil (e.g., SAE 80W-90).
📐 Dimensions
Exterior
Length:
185.8 inches
Width:
70.8 inches
Height:
47.8 inches
Wheelbase:
98.0 inches
Weights
Curb Weight Lbs:
~3,400 - 3,600 lbs (varies by options)
Gross Vehicle Weight Rating Lbs:
~4,500 lbs (estimated)
Interior
Seating Capacity:
2
Cargo
Cargo Volume Cu Ft:
~12.7 cu ft (rear compartment)
🛡️ Safety Features
Ratings
Safety Ratings Era:
Safety standards and ratings were significantly different in 1979; modern comparisons are not directly applicable. Focus was on structural integrity and basic occupant protection.
Active Features
Active Safety Features:
Power-assisted front disc brakes, rear drum brakes, independent suspension for improved handling, front stabilizer bar.
Passive Features
Passive Safety Features:
Three-point seatbelts, padded interior surfaces, energy-absorbing steering column, side-impact protection built into the frame.
💡 Technology Features
Infotainment
Infotainment System:
AM/FM radio, optional 8-track tape player or CB radio. Basic analog instrumentation.
Driver Assistance
Driver Assistance Features:
None in the modern sense. Focus on mechanical feedback and driver engagement.
🔧 Maintenance
Service Intervals
Oil Change Interval Miles:
Every 3,000 to 5,000 miles or 6 months (recommendation based on era and usage).
Transmission Fluid Change Interval:
Every 24,000 to 30,000 miles or 24 months.
Coolant Flush Interval:
Every 24,000 to 30,000 miles or 24 months.
Spark Plug Replacement Interval:
Every 30,000 miles (typical for HEI systems).
Drive Belt Inspection Interval:
Inspect annually; replace as needed due to cracking or wear.
Fluid Specifications
Engine Oil Type:
API SF or SG rated, SAE 10W-30 or 10W-40 (check specific engine recommendation).
Engine Oil Capacity Qts:
5 quarts with filter (350ci).
Brake Fluid Type:
DOT 3 or DOT 4.
Power Steering Fluid:
Dexron III ATF or specified power steering fluid.
Coolant Type:
50/50 mix of ethylene glycol antifreeze and water.
Known Issues
Common Issues Body:
Fiberglass degradation (cracking, crazing), gel coat damage, window seal leaks, door fitment issues.
Common Issues Engine:
Carburetor tuning issues, intake manifold gasket leaks, distributor advance mechanism wear, potential for valve guide wear on high-mileage engines.
Common Issues Electrical:
Wire harness degradation, corrosion in connectors, headlight motor issues, fuel sender unit failures.
Common Issues Suspension:
Worn ball joints, tie rod ends, bushings; potential for creaks and rattles from aging components.
📚 Vehicle History
Brand Heritage
Brand Heritage:
Chevrolet's legacy of performance and innovation, established by the Corvette since 1953.
Model Evolution
C3 Generation Period:
1968-1982
1979 Model Year Changes:
Revised interior with updated dashboard and console design, new Z51 heavy-duty suspension option, standard power steering, improved aerodynamics. The '427' designation in the manual title likely refers to the desire for high-performance engine details, as the actual 427ci Big Block was phased out before this generation, with high-performance 350s (like the L82) being the top engine options.
Production
Production Volume 1979:
53,807 units (highest for C3 generation)
Manufacturing Location:
St. Louis, Missouri (until 1981), then Bowling Green, Kentucky.
🏆 Awards & Recognition
Recognitions
Awards Era:
While specific awards for the 1979 model are scarce, the C3 Corvette generation as a whole is widely recognized as a significant icon of American automotive design and performance during its production run.
Ratings
Iconic Status:
Consistently ranked among desirable classic sports cars.

Delivery & file format

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Check the model year and engine before you buy

Manufacturers change procedures, wiring and part numbers between model years and engine options. If your VIN plate shows a year or engine code that is not listed on the data plate above, contact us with the model, year and VIN and we will confirm coverage before you order.

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