1977 CORVETTE

General Specifications

Chasis:

Wheelbase: 98"

Overall Length: 185.2"

Tire Size: GR70 x 15 inches

Body Data:

Sting Ray, 8 Cylinder:

2 Door Fastback Coupe, 2 Passenger, Series #1Y; Body #Z37

Base Price: $8,648; Shipping Weight: 3,448 Pounds;

Production Total: 49,213

8 Cylinder Engine Specifications:

180 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.00" x 3.48"

Engine Displacement: 350 Cu. In.

Compression Ratio: 8.5 to 1;

Taxable Horsepower: 51.23

Horsepower: 180 @ 4,000 RPM

Maximum Torque: 270 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 32-40 PSI

One, 4 Barrel Carburetor

210 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: 210 @ 5,200 RPM

Maximum Torque: 255 Ft Lbs @ 3,600 RPM

Normal Oil Pressure: 32-40 PSI

One, 4 Barrel Carburetor

Available Axle Ratios:

3.36:1; 3.08:1; 3.55:1; 3.70:1

1977 CORVETTE

Tune Up Specifications:

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

Spark Plug: AC R45TS

Spark Plug Gap .045"

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

Ignition Timing:

Manual Transmission: 8 Degrees BTDC on Damper

Automatic Transmission: 8 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 700 RPM

Automatic Transmission: 500 RPM in Drive; 650 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: 1,600 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: 800 RPM

Automatic Transmission: 700 RPM in Drive; 800 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, 350 Cu. In.:

Operating (Tappet) Clearance, Hot:

Intake: 3/4 Turn

Exhaust: 3/4 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: 175 Lbs. @ 1.26"

Valve Stem Clearance:

Intake .001"-.0027"

Exhaust .0012"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

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

8 Cylinder Engine, 350 Cu. In., 180 H.P.:

Piston Clearance: .0007"-.0017"

Ring End Gap:

Compression: .010"

Oil: .015

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 2.099"-2.100"

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., 210 H.P.:

Piston Clearance: .0046"-.0056"

Ring End Gap:

Compression: .010"

Oil: .015

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 2.099"-2.100"

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:

350 Cu. In. Engine:

Cooling System:

With Heater: 21 Quarts

With Air Conditioning: 21 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening Temperature: 195 Degrees

Fuel Tank: 17 Gallons

Engine Oil Refill: 5 Quarts with New Filter

Transmission Oil:

4 Speed Manual: 3 Pints

Automatic Transmission:

THM 350: 10 Quarts

THM 400: 11 Quarts

Rear Axle: 3-3/4 Pints

Engine Tightening Specifications:

350 Cu. In. 8 Cylinder:

Spark Plugs: 15 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.

Outer Bolts on Engines with 4 Bolt Caps: 65 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs

Vibration Damper: 60 Ft. Lbs.

Alternators:

8 Cylinder Engine:

#1102474

Rated Hot Output: 61 Amperes

Field Current @ 12 Volts, 80 Degrees: 4.0-4.5 Volts

Output @ 14 Volts, 5,000 RPM: 57 Amperes

Voltage Regulator: Integral

#1102484

Rated Hot Output: 42 Amperes

Field Current @ 12 Volts, 80 Degrees: 4.0-4.5 Volts

Output @ 14 Volts, 5,000 RPM: 38 Amperes

Voltage Regulator: Integral

Distributors:

8 Cylinder Engine:

#1103246, 1103248, 1103256

No further information available.

Starting Motors:

8 Cylinder, 350 Cu. In. Engine:

#1108776, 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: Check with Dial Gauge

Adjustment: .005"-.008"

Pinion Bearing Preload:

Method: Spacer

New Bearing Adjustment: 20-25 Inch Lbs.

Used Bearing Adjustment: 5-10 Inch Lbs.

Differential Bearing Preload:

Method: Shims

New Bearing Adjustment: .010"

Used Bearing Adjustment: .010"

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: +7/8 Degrees

Toe In: -1/32" to +1/32"

Carburetor Types:

8 Cylinder Engines:

Rochester Quadrajet M4M:

Carburetor #17057202, 17057204

Float Level: 15/32"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .245"

Rear: --

Air Valve Dashpot: .015"

Choke Setting: 2 Lean

Choke Unloader: .280"

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

Rochester Quadrajet M4M:

Carburetor #17057203

Float Level: 15/32"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .245"

Rear: ---

Air Valve Dashpot: .015"

Choke Setting: 3 Lean

Choke Unloader: .280"

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

Rochester Quadrajet M4M:

Carburetor #17057210

Float Level: 15/32"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .275"

Rear: ---

Air Valve Dashpot: .015"

Choke Setting: 2 Lean

Choke Unloader: .280"

Air Valve Valve Spring Wind-Up: 1"

Rochester Quadrajet M4M:

Carburetor #17057211

Float Level: 15/32"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .275"

Rear: ---

Air Valve Dashpot: .015"

Choke Setting: 3 Lean

Choke Unloader: .280"

Air Valve Valve Spring Wind-Up: 1

Rochester Quadrajet M4M:

Carburetor #17057228

Float Level: 13/32"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .275"

Rear: ---

Air Valve Dashpot: .015"

Choke Setting: 2 Lean

Choke Unloader: .280"

Air Valve Valve Spring Wind-Up: 1"

Carburetor #17057502, 17057504

Float Level: 15/32"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .260"

Rear: ---

Air Valve Dashpot: .015"

Choke Setting: 2 Lean

Choke Unloader: .280"

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

Carburetor #17057510

Float Level: 15/32"

Pump Rod:

Hole: Inner

Adjustment: 9/32"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .180"

Rear: ---

Air Valve Dashpot: .015"

Choke Setting: 2 Lean

Choke Unloader: .280"

Air Valve Valve Spring Wind-Up: 1"

Carburetor #17057582, 17057584

Float Level: 15/32"

Pump Rod:

Hole: Inner

Adjustment: 3/8"

Fast Idle, Bench Adjustment: 3 Turns

Choke Coil Lever: .120"

Choke Rod: .325"

Vacuum Break:

Front: .260"

Rear: ---

Air Valve Dashpot: .015"

Choke Setting: 2 Lean

Choke Unloader: .280"

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

VIN Numbers:

1Z37L7S400001 - 1Z37L7S449213

Popular Options:

Power Windows; Rear Defogger; Air Conditioning; Sport Mirrors; Gymknhana Suspension; Cruise Control; Automatic Transmission; 4 Speed Manual Transmission; Tilt & Telescopic Steering Column; AM-FM Radio; AM-FM Stereo Radio; AM-FM Stereo Radio with 8 Track Tape Player; Aluminum Wheels; Trailer Towing Package; Luggage & Roof Rack; Convenience Group, Engine Options.

Paint Colors:

Code Color

10 Classic White

13 Silver

19 Black

26 Corvette Light Blue

28 Coevette Dark Blue

41 Corvette Chartreuse

52 CorvetteYellow

56 Corvette Bright Yellow

66 Corvette Orange

72 Medium Red

80 Corvette Tan

83 Corvette Dark Red

1977 Corvette Promotional Model Cars Available:

Plastic: Corvette Sting Ray Coupe

1977 Corvette Historical Data:

1977 Corvette model year introduction date was on September 30, 1976.

Model Year Production: 49,213 Cars

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