1977 BUICK SKYHAWK

1977 BUICK SKYHAWK

Model Designations:

Buick Skyhawk, 6 Cylinder

Buick Skyhawk, Body Styles:

2 Door 'S' Hatchback Coupe, 4 Passenger, Body #T07

Base Price: $3,981; Shipping Weight: 2,805 Pounds

Production Total: N/A

2 Door Hatchback Coupe, 4 Passenger, Body #S07

Base Price: $4,294; Shipping Weight: 2,817 Pounds

Production Total: N/A

Total 1977 Skyhawk Production was 24,044.

General Specifications:

Wheelbase:

All Styles: 97"

Tire Sizes:

Skyhawk: BR78 X 13"

Skyhawk 'S': B78 X 13"

Engine Specifications, 231 Cu. In., 6 Cylinder, 105 HP:

Engine Type: Overhead Valve V-Type 6 Cylinder

Engine Bore & Stroke: 3.80" X 3.40"

Engine Displacement: 231 Cu. In.

Compression Ratio: 8.0:1

Taxable Horsepower: 34.66

Horsepower: 105 @ 3,200 RPM

Torque: 185 Ft. Lbs. @ 2,000 RPM

Normal Oil Pressure: 37 PSI

Carburetor: 2 Barrel

Tune Up Specifications:

V-6, 231 Cubic Inch Engine, 105 H.P., Except Even Fire Engine:

Spark Plug Type:

Early Models: AC R46TS

Late Models: AC R46TSX

Spark Plug:

Gap Early Models: .040"; Late Models: .060"

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

Ignition Timing:

Standard Transmission: 12 Degrees BTDC

Automatic Transmission: 12 Degrees BTDC

Engine Idle Speed:

Standard Transmission: 600 RPM, 800 RPM with A/C Solenoid Energized

Automatic Transmission: 600 RPM in Drive;

Fuel Pump Pressure: 3 to 4-1/2 PSI

Tune Up Specifications, 6 Cylinder, 231 Cu. In. Engine, Even Fire Engine:

Spark Plug Type: AC R46TSX

Spark Plug: Gap .060"

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

Ignition Timing: 15 Degrees BTDC

Curb Idle Speed:

Automatic Transmission: 600 RPM, in Drive; 670 in Drive with Idle Solenoid Energized

Fuel Pump Pressure: 3 to 4-1/2 PSI

Valve Data, V-Type 6 Cylinder 231 Cu. In. Engine:

Valve Lash: Hydraulic

Valve Seat Angle:

Seat: 45 Degrees

Face: 45 Degrees

Valve Spring Height, Installed: 1.727"

Minimum Valve Spring Pressure: 168 Pounds @ 1.327"

Valve Stem Clearance:

Intake: .0015"-.0032"

Exhaust: .0015"-.0032"

Valve Stem Diameter:

Intake: Tapered .3402-.3412"

Exhaust: Tapered .3404-.3412"

Piston, Pins, Rings, Crankshaft, & Bearings, 231 Cu. In. V-6 Engine:

Piston Clearance: .0008"-.0020"

Ring End Gap:

Compression: .013"

Oil Control: .015"

Wrist Pin Diameter: .9393"

Rod Bearings:

Shaft Diameter: 1.9991"-2.000""

Rod Bearing Clearance: .0005"-.0026"

Main Bearings:

Shaft Diameter: 2.4995"

Main Bearing Clearance: .0004"-.0015"

Thrust on Bearing #2

Shaft End Play: .004"-.008"

Engine Tightening Specifications, 231 Cu. In. V-6 Engines:

Spark Plugs: 20 Ft. Lbs.

Cylinder Head Bolts: 80 Ft. Lbs.

Intake Manifold: 45 Ft. Lbs.

Exhaust Manifold: 25 Ft. Lbs.

Rocker Arm Shaft Bracket: 30 Ft. Lbs.

Rocker Arm Cover: 4 Ft. Lbs.

Connecting Rod Cap Bolts: 40 Ft. Lbs.

Main Bearing Cap Bolts: 115 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: 175 Ft. Lbs.

Capacities:

6 Cylinder, 231 Cu. In. Engine:

Cooling System:

With Heater: 13 Quarts

With Air Conditioning: 13 Quarts

Radiator Cap Pressure: 15 PSI

Thrermostat Opening: 195 Degrees

Fuel Tank: 18-1/2 Gallons

Engine Oil Refill: 5 Quarts, with Filter

Transmission Oil:

4 Speed: 2.4 Pints

5 Speed: 3.5 Pints

Automatic Transmission:

Refill: 2-1/2 Quarts

Total Capacity: 10-1/2 Quarts

Rear Axle: 2.8 Pints

Rear Axle Specifications:

Carrier Type: Integral

Ring Gear & Pinion Backlash:

Method: Shims

Adjustment: .006"-.008"

Pinion Bearing Preload:

Method: Spacer

New Bearings: 10-25 Inch Lbs.

Used Bearings: 8-12 Inch Lbs.

Differential Bearing Preload:

Method: Shims

New Bearings: 35-40 Inch Pounds

Used Bearings: 20-25 Inch Pounds

Brake Specifications:

Brake Drum Diameter: 9.50"

Wheel Cylinder Bore:

Front Disc Brakes: 2-1/2"

Rear: 3/4"

Master Cylinder Bore:

Disc Brakes: 3/4"

Power Brakes: 3/4"

Wheel Alignment Specifications:

Caster: -3/4 Degree

Camber:

Left: +1/4 Degrees

Right: +1/4 Degrees

Toe Out: 0"-1/8"

Alternator Specifications:

Note: Not all alternators shown my be available on the Skyhawk

Model: 1102394

Rated Hot Output: 37 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 33 Amperes

Regulator: Integral

Voltage @ 85 Degrees: 13.8-14.8 Volts

Model: 1102479

Rated Hot Output: 55 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 51 Amperes

Regulator: Integral

Voltage @ 125 Degrees: 13.6-14.2 Volts

Model: 1102495

Rated Hot Output: 55 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,500 RPM: 55 Amperes

Regulator: Integral

Voltage @ 125 Degrees: 13.6-14.2 Volts

Model: 1102858

Rated Hot Output: 37 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 33 Amperes

Regulator: Integral

Voltage @ 85 Degrees: 13.8-14.8 Volts

Model: 1102881

Rated Hot Output: 37 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 33 Amperes

Regulator: Integral

Voltage @ 125 Degrees: 13.5-14.2 Volts

Model: 1102854

Rated Hot Output: 63 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 60 Amperes

Regulator: Integral

Distributor Specifications:

Note: Note all distributors shown below will be available on the Skyhawk.

#1110661

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 525 RPM

Intermediate Advance: 3 Degrees @ 1,000 RPM

Full Advance: 8 Degrees @ 2,050 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6"

Maximum Vacuum Advance: 9 Degrees @ 10" Vacuum

#1110668

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 638 RPM

Full Advance: 8 Degrees @ 1,600 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 6"

Maximum Advance: 12 Degrees @ 12" Vacuum

#1112862

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 450 RPM

Intermediate Advance: 2-1/2 Degrees @ 1,000 RPM

Full Advance: 11 Degrees @ 2,400 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 5"

Maximum Advance: 10 Degrees @ 14" Vacuum

#1112983

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Intermediate Advance: 4-1/2 Degrees @ 1,000 RPM

Full Advance: 11 Degrees @ 2,000 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Advance: 7-1/2 Degrees @ 10" Vacuum

Carburetor Data:

Note: See 1977 General Motors Carburetors Database.

Starting Motor Data:

6 Cylinder 231 Cu. In. Engine:

Starter # 1108797

Brush Spring Tension: 35 Ounces

Free Speed Test: 55-80 Amperes, 9 Volts, @ 5,500-10,500 RPM

1977 Buick Colors & Codes:

11 White

13 Silver

15 Gray

16 Medium Gray

19 Black

22 Light Blue

29 Dark Blue

36 Firethorn

38 Dark Aqua

44 Medium Green

48 Dark Green

51 Yellow

57 Cream Gold

61 Buckskin

63 Gold

69 Brown

72 Red

75 Bright Red

78 Orange

85 Medium Blue

91 Blue Firemist

92 Amber Firemist

93 Red Firemist

Popular Options:

Power Steering; Air Conditioning; AM Radio; AM-FM Radio; AM-FM Stereo Radio; AM Radio & Tape Player; AM-FM Stereo Radio & Tape Player; Rear Speaker for Non-Stereo Radios; Windshield Antenna; Power Steering; Power Brakes; Vinyl Top; Automatic Transmission, Tinted Glass; Electric Rear Defogger; Clock & Tachometer; Sport Mirrors; Custom Sport Wheels; Wheel Trim Rings; DeLuxe Wheel Covers; Adjustable Drivers Seat Back; Floor Mats; Door Edge Guards; and Much More.

1977 Buick Skyhawk Historical Data:

The 1977 Buick model year introduction was on September 30, 1976.

Total 1977 Buick Skyhawk Production was 24,044.

Promotional Model Cars:

None