1980 CORVETTE

General Specifications

Chasis:

Wheelbase: 98"

Overall Length: 185.3"

Tire Size:

Standard: P225/70R15"

Optional: P225/60R15

Body Data:

Sting Ray, 8 Cylinder:

2 Door Sport Coupe, 2 Passenger, Series #1Y; Body #Z87

Base Price: $13,140; Shipping Weight: 3,206 Pounds;

Production Total: 40,614

8 Cylinder Engine Specifications:

180 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 3.74" x 3.48"

Engine Displacement: 305 Cu. In.

Compression Ratio: 8.5 to 1;

Taxable Horsepower: 44.76

Horsepower: 180 @ 4,200 RPM

Maximum Torque: 255 Ft Lbs @ 2,000 RPM

Normal Oil Pressure: 45 PSI

One, 4 Barrel Carburetor

190 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.00" x 3.48"

Engine Displacement: 350 Cu. In.

Compression Ratio: 8.2 to 1;

Taxable Horsepower: 51.23

Horsepower: 190 @ 4,200 RPM

Maximum Torque: 280 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 45 PSI

One, 4 Barrel Carburetor

230 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.00" x 3.48"

Engine Displacement: 350 Cu. In.

Compression Ratio: 9.0 to 1;

Taxable Horsepower: 51.23

Horsepower: 230 @ 5,200 RPM

Maximum Torque: 275 Ft Lbs @ 3,600 RPM

Normal Oil Pressure: 45 PSI

One, 4 Barrel Carburetor

Available Axle Ratios:

3.07:1; 3.55:1;

1980 CORVETTE

Tune Up Specifications:

8 Cylinder 305 Cu. In. Engine:

Spark Plug: AC R45TS

Spark Plug Gap .045"

Firing Order: 1-8-4-3-6-5-7-2

Ignition Timing:

Automatic Transmission: 4 Degrees BTDC on Damper

Engine Idle Speed:

Automatic Transmission:

650 RPM in Drive

Fuel Pump Pressure: 7-1/2 to 9 PSI

8 Cylinder 350 Cu. In. Engine, except High Performance & California:

Spark Plug: AC R45TS

Spark Plug Gap .045"

Firing Order: 1-8-4-3-6-5-7-2

Ignition Timing:

Manual Transmission: 6 Degrees BTDC on Damper

Automatic Transmission: 6 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 700 RPM

Automatic Transmission:

500 RPM in Drive; 600 RPM with Idle Solenoid Energized

Fast Idle Speed:

Standard Transmission: 1,300 RPM

Automatic Transmission: 1,600 RPM

Fuel Pump Pressure: 7-1/2 to 9 PSI

8 Cylinder 350 Cu. In. Engine, High Altitude, except High Performance. :

Spark Plug: AC R45TS

Spark Plug Gap .045"

Firing Order: 1-8-4-3-6-5-7-2

Ignition Timing:

Automatic Transmission: 8 Degrees BTDC on Damper

Engine Idle Speed:

Automatic Transmission: 600 RPM in Drive; 650 RPM with Idle Solenoid Energized

Fast Idle Speed:

Automatic Transmission: 1,750 RPM

Fuel Pump Pressure: 7-1/2 to 9 PSI

8 Cylinder 350 Cu. In. Engine, High Performance:

Spark Plug: AC R45TS

Spark Plug Gap .045"

Firing Order: 1-8-4-3-6-5-7-2

Ignition Timing:

Manual Transmission: 12 Degrees BTDC on Damper

Automatic Transmission: 12 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 900 RPM

Automatic Transmission: 500 RPM in Drive; 600 RPM with Idle Solenoid Energized

Fast Idle Speed:

Standard Transmission: 1,300 RPM

Automatic Transmission: 1,600 RPM

Fuel Pump Pressure: 7-1/2 to 9 PSI

Valve Specifications:

8 Cylinder Engine, 305 Cu. In.:

Operating (Tappet) Clearance, Hot:

Intake: 1 Turn

Exhaust: 1 Turn

Valve Seat Angle:

Seat: 46 Degrees

Face 45 Degrees

Valve Spring Height Installed: 1-23/32"

Valve Spring Pressure: 200 Lbs @ 1.25:

Valve Stem Clearance:

Intake .001"-.0027"

Exhaust .0010"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

8 Cylinder Engine, 350 Cu. In.:

Operating (Tappet) Clearance, Hot:

Intake: 1 Turn

Exhaust: 1 Turn

Valve Seat Angle:

Seat: 46 Degrees

Face 45 Degrees

Valve Spring Height Installed:

Intake: 1-23/32"

Exhaust: 1-19/32"

Valve Spring Pressure:

Intake: 200 Lbs @ 1.25:

Exhaust: 200 Lbs. @ 1.16"

Valve Stem Clearance:

Intake .001"-.0027"

Exhaust .0010"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3412"

Exhaust: .3410"-.3412"

Pistons, Pins, Rings, Crankshaft, & Bearings Data:

8 Cylinder Engine, 305 Cu. In., 180 H.P.:

Piston Clearance: .0007"-.0017"

Ring End Gap:

Compression: .010"

Oil: .015

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 2.0986"-2.0998"

Rod Bearing Clearance: .0013"-.0035"

Main Bearings:

Shaft Diameter:

Front: 2.4484"-2.4493"

Intermediate: 2.4481"-2.4490"

Rear: 2.4479"-2.4488"

Main Bearing Clearance:

Front: .0008"-.0020"

Intermediate:: .0011"-.0023"

Rear: .0017"-.0033"

Thrust on Rear Bearing: #5

Crankshaft End Play: .002"-.006"

8 Cylinder Engine, 350 Cu. In., 190 H.P.:

Piston Clearance: .0007"-.0017"

Ring End Gap:

Compression: .010"

Oil: .015

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 2.0986"-2.0998"

Rod Bearing Clearance: .0013"-.0035"

Main Bearings:

Shaft Diameter:

Front: 2.4484"-2.4493"

Intermediate: 2.4481"-2.4490"

Rear: 2.4479"-2.4488"

Main Bearing Clearance:

Front: .0008"-.0020"

Intermediate:: .0011"-.0023"

Rear: .0017"-.0033"

Thrust on Rear Bearing: #5

Crankshaft End Play: .002"-.006"

8 Cylinder Engine, 350 Cu. In., 230 H.P.:

Piston Clearance: .0046"-.0056"

Ring End Gap:

Compression: .010"

Oil: .015

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 2.0986"-2.0998"

Rod Bearing Clearance: .0013"-.0035"

Main Bearings:

Shaft Diameter:

Front: 2.4484"-2.4493"

Intermediate: 2.4481"-2.4490"

Rear: 2.4479"-2.4488"

Main Bearing Clearance:

Front: .0008"-.0020"

Intermediate:: .0011"-.0023"

Rear: .0017"-.0033"

Thrust on Rear Bearing: #5

Crankshaft End Play: .002"-.006"

Capacities:

305 Cu. In. Engine:

Cooling System:

With Heater: 21.5 Quarts

With Air Conditioning: 22.9 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening Temperature: 195 Degrees

Fuel Tank: 24 Gallons

Engine Oil Refill: 5 Quarts with New Filter

Transmission Oil:

Automatic Transmission:

Oil Pan Refill: 3 Quarts

Complete Refill: 10 Quarts

Rear Axle: 3-3/4 Pints

350 Cu. In. Engine:

Cooling System:

With Heater: 21.6 Quarts

With Air Conditioning: 21.6 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening Temperature: 195 Degrees

Fuel Tank: 24 Gallons

Engine Oil Refill: 5 Quarts with New Filter

Transmission Oil:

4 Speed Manual: 3-1/2 Pints

Automatic Transmission:

Oil Pan Refill: 3 Quarts

Complete Refill: 10 Quarts

Rear Axle: 3-3/4 Pints

Engine Tightening Specifications:

305 Cu. In. 8 Cylinder:

Spark Plugs: 22 Ft. Lbs

Cylinder Head Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 20 Ft. Lbs

Rocker Arm Cover: 45 Inch Lbs.

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 70 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs

Vibration Damper: 60 Ft. Lbs.

350 Cu. In. 8 Cylinder:

Spark Plugs: 22 Ft. Lbs

Cylinder Head Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold:

Outside Bolts: 20 Ft. Lbs

Inside Bolts: 30 Ft. Lbs.

Rocker Arm Shaft Stud: 50 Ft. Lbs.

Rocker Arm Cover: 45 Inch Lbs.

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 70 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs

Vibration Damper: 60 Ft. Lbs.

Alternators:

8 Cylinder Engine:

#1103088

Rated Hot Output: 55 Amperes

Voltage Regulator: Integral

#1103122

Rated Hot Output: 63 Amperes

Voltage Regulator: Integral

#1101041; 1101075, 1101085, & 1101088

No Further Information is available.

Distributors:

8 Cylinder Engine:

#1103353

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 550 RPM

Intermediate Advance: 6 Degrees @ 800 RPM

Intermediate Advance: 8 Degrees @ 1,200 RPM

Full Advance: 11 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Vacuum Advance: 10 Degrees @ 10" Vacuum

#1103368

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 500 RPM

Intermediate Advance: 5 Degrees @ 850 RPM

Full Advance: 10 Degrees @ 1,900 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Vacuum Advance: 5 Degrees @ 8" Vacuum

Starting Motors:

8 Cylinder, 305 Cu. In. Engine:

#1108774

No Load Test: 60-88 Amps, 9 Volts @ 6,500-10,100 RPM

8 Cylinder, 350 Cu. In. Engine:

#1109052, 1109059

No Load Test: 65-95 Amps, 9 Volts @ 7,500-10,500 RPM

Brake Specifications:

Wheel Cylinder Bore:

Disk Brake:

Front 1-7/8"

Rear: 1-3/8"

Master Cylinder Bore:

Power Disc Brakes: 1-1/8"

Rear Axle Specifications:

Carrier Type: Integral

Ring Gear & Pinion Backlash:

Method: Shims

Adjustment: .005"-.009"

Pinion Bearing Preload:

Method: Shims

New Bearing Adjustment: 15-25 Inch Lbs.

Used Bearing Adjustment: ---

Differential Bearing Preload:

Method: Shims

Wheel Alignment Specifictions:

Front Wheel Alignment:

Caster: + 2-1/4 Degrees

Camber: +3/4 Degrees

Toe In: 3/16 to 5/16""

Rear Wheel Alignment:

Camber: +.7 Degrees

Toe In: -1/16"

Carburetor Types:

8 Cylinder Engines:

Rochester Quadrajet M4M:

Carburetor #17080204

Float Level: 7/16"

Pump Rod:

Hole: Inner

Adjustment: 1/4"

Fast Idle, Bench Adjustment: 4 Turns

Choke Coil Lever: .120"

Choke Rod: 20 Degrees

Vacuum Break:

Front: 27 Degrees

Rear: --

Air Valve Dashpot: .025"

Choke Unloader: 38 Degrees

Air Valve Valve Spring Wind-Up: 7/8"

Rochester Quadrajet M4M:

Carburetor #17080207

Float Level: 7/16"

Pump Rod:

Hole: Inner

Adjustment: 1/4"

Fast Idle, Bench Adjustment: 4 Turns

Choke Coil Lever: .120"

Choke Rod: 20 Degrees

Vacuum Break:

Front: 27 Degrees

Rear: ---

Air Valve Dashpot: .025"

Choke Unloader: 38 Degrees

Air Valve Valve Spring Wind-Up: 17/8

Rochester Quadrajet M4M:

Carburetor #17080228

Float Level: 7/16"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 4 Turns

Choke Coil Lever: .120"

Choke Rod: 20 Degrees

Vacuum Break:

Front: 30 Degrees

Rear: ---

Air Valve Dashpot: .025"

Choke Unloader: 38 Degrees

Air Valve Valve Spring Wind-Up: 7/8

Rochester Quadrajet M4M:

Carburetor #17080504

Float Level: 1/2"

Fast Idle, Bench Adjustment: 4 Turns

Choke Coil Lever: .120"

Choke Rod: 20 Degrees

Vacuum Break:

Front: 24 Degrees

Rear: 30 Degrees

Air Valve Dashpot: .025"

Choke Unloader: 38 Degrees

Air Valve Valve Spring Wind-Up: 7/8

VIN Numbers:

1Z878AS400001 - 1Z878AS440614

Popular Options:

Power Door Locks; Silver Anniversary Paint; Removable Glass Roof Panels; Rear Defogger; Air Conditioning; Sport Mirrors; Gymknhana Suspension; Cruise Control; Automatic Transmission; 4 Speed Manual Transmission; Radio Delete; AM-FM Stereo Radio; AM-FM Stereo Radio with 8 Track Tape Player; AM-FM Stereo Radio with Cassette Tape Player; AM-FM Stereo Radio with CB; Power Antenna; Dual Rear Speakers; Aluminum Wheels; Front & Rear Spoilers; Trailer Towing Package; Heavy Duty Battery; Engine Options.

Paint Colors:

Code Color

10 White

13 Silver

19 Black

28 Dark Blue

47 Dark Brown

52 Yellow

58 Dark Green

59 Frost Beige

76 Claret

83 Red

1980 Corvette Promotional Model Cars Available:

Plastic: Corvette Sting Ray Coupe

1980 Corvette Historical Data:

1980 Corvette model year introduction date was on October 25, 1979.

Model Year Production: 40,614 Cars.

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