1972 BUICK SKYLARK & GRAN SPORT

1972 BUICK SKYLARK & GRAN SPORT

Models:

Buick Skylark & Skylark 350, Series 43300, 8 Cylinder

Buick Skylark Custom, Series 44400, 8 Cylinder

Buick GS 350 & GS 455, Series 43400, 8 Cylinder

Buick Skylark & Skylark 350:

4 Door Sedan, 6 Passenger, Model 43369,

Base Price: $3,389; Shipping Weight: 3,408 Pounds

Production Total: 42,206

2 Door Hardtop Coupe, 6 Passenger, Model 43337

Base Price: $3,409; Shipping Weight: 3,403 Pounds

Production Total: 84,868

2 Door Coupe, 6 Passenger, Model 43327

Base Price: $3,341; Shipping Weight: 3,348 Pounds

Production Total: 14,552

Buick Skylark Custom:

4 Door Sedan, 6 Passenger, Model 44469,

Base Price: $3,644; Shipping Weight: 3,408 Pounds

Production Total: 9,924

2 Door Hardtop Coupe, 6 Passenger, Model 44437

Base Price: $3,671; Shipping Weight: 3,403 Pounds

Production Total: 34,271

4 Door Hardtop, 6 Passenger, Model 44439,

Base Price: $3,747; Shipping Weight: 3,546 Pounds

Production Total: 12,925

2 Door Convertible Coupe, 6 Passenger, Model 44467

Base Price: $3,809; Shipping Weight: 3,476 Pounds

Production Total: 3,608

4 Door Station Wagon, 6 Passenger, Model 44436,

Base Price: $3,860; Shipping Weight: 3,936 Pounds

Production Total: 14,417

Total Skylark Production: 216,771.

Buick GS 350 & GS 455:

2 Door Hardtop, 6 Passenger, Model 43437

Base Price: $3,641; Shipping Weight: 3,475 Pounds

Production Total: 7,723

Convertible Coupe, 6 Passenger, Model 43467

Base Price: $3,822; Shipping Weight: 3,517 Pounds

Production Total: 852

Total Gran Sport Production: 8,575

Chassis:

Wheelbase:

Skylark 2 Door: 112"

Skylark 4 Door: 116"

Tire Sizes:

Skylark, Skylark Custom, GS 350 & GS 455: G78 X 14"

Major Engine Specifications, 350 Cubic Inch V-8 Engine, 150 H.P.:

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 3.80" X 3.85"

Engine Displacement: 350 Cu. In.

Compression Ratio: 8.50:1

Taxable Horsepower: 46.21

Horsepower: 150 @ 3,800 RPM

Torque: 265 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 37 PSI

Carburetor: 2 Barrel

Major Engine Specifications, 350 Cubic Inch V-8 Engine, 190 H.P.:

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 3.80" X 3.85"

Engine Displacement: 350 Cu. In.

Compression Ratio: 8.50:1

Taxable Horsepower: 46.21

Horsepower: 190 @ 4,000 RPM

Torque: 285 Ft. Lbs. @ 2,800 RPM

Normal Oil Pressure: 37 PSI

Carburetor: 4 Barrel

Major Engine Specifications, 455 Cubic Inch V-8 Engine, 225 H.P.:

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 4.3125" X 3.90"

Engine Displacement: 455 Cu. In.

Compression Ratio: 8.50:1

Taxable Horsepower: 59.51

Horsepower: 225 @ 4,000 RPM

Torque: 360 Ft. Lbs. @ 2,600 RPM

Normal Oil Pressure: 40 PSI

Carburetor: 4 Barrel

Engine Available by Model:

150 HP V-8, 350 Cu. In. Standard on Skylark

190 HP V-8, 350 Cu. In. Standard on GS. Optional on Skylark.

225 HP V-8, 455 Cu. In. Optional on Skylark & GS.

Capacities, 8 Cylinder, 350 Cu. In. Engine:

Cooling System:

With Heater: 16.45 Quarts

With Air Conditioning: 16.85 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening: 190 Degrees

Fuel Tank: 20 Gallons (Wagons: 23 Gallons)

Engine Oil: 4 Quarts*

Manual Transmission Capacity:

3 Speed: 3-1/2 Pints

4 Speed: 3 Pints

Automatic Transmission Capacity:

Total Capacity: 10 Quarts

Oil Pan Only: 3 Quarts

Rear Axle Capacity:

8-1/2" Axle: 4-1/4 Pints

8-7/8" Axle: 5-1/4 Pints

9-3/8" Axle: 5-1/2 Pints

* Add 1 Quart for Oil Filter.

Capacities, 8 Cylinder, Gran Sport 455 Cu. In. Engine:

Cooling System:

With Heater: 16.2 Quarts

With Air Conditioning: 16.3 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening: 190 Degrees

Fuel Tank: 20 Gallons

Engine Oil: 4 Quarts*

Manual Transmission Capacity:

3 Speed: 3-1/2 Pints

4 Speed: 3 Pints

Automatic Transmission Capacity:

Total Capacity: 11-1/2 Quarts

Oil Pan Only: 3-1/2 Quarts

Rear Axle Capacity:

8-1/2" Axle: 4-1/4 Pints

8-7/8" Axle: 5-1/4 Pints

9-3/8" Axle: 5-1/2 Pints

* Add 1 Quart for Oil Filter.

Tune-Up Data, 8 Cylinder, 350 Cu. In. Engine:

Spark Plug Type: AC R45TS

Spark Plug Gap: .040"

Ignition Point Gap: .016" (Turn Screw in until engine misfires, then back off 1/2 turn.)

Distributor Cam Angle: 30 Degrees

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

Ignition Timing Mark & Location: 4 Degrees BTDC

Engine Idle Speed:

Manual Transmission: 800 RPM

Automatic Transmission: 650 RPM, in Drive

Tune-Up Data, 8 Cylinder, 455 Cu. In. Engine:

Spark Plug Type: AC R45TS

Spark Plug Gap: .040"

Ignition Point Gap: .016" (Turn Screw in until engine misfires, then back off 1/2 turn.)

Distributor Cam Angle: 30 Degrees

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

Ignition Timing Mark & Location: 4 Degrees BTDC

Engine Idle Speed:

Manual Transmission: 900 RPM

Automatic Transmission: 650 RPM

Valve Data, 8 Cylinder 350 Cu. In. Engines:

Valve Lash: Hydralic

Valve Seat Angle:

Seat: 45 Degrees

Face: 45 Degrees

Valve Spring Height, Installed: 1.72"

Minimum Valve Spring Pressure: 180 Pounds @ 1.34"

Valve Stem Clearance:

Intake: Tapered .0015"-.0035"

Exhaust: Tapered .0015"-.0032"

Valve Stem Diameter:

Intake: Tapered .3720"-.3730"

Exhaust: Tapered .3723"-.3730"

Valve Data, 8 Cylinder 455 Cu. In. Engine:

Valve Lash: Hydralic

Valve Seat Angle:

Seat: 45 Degrees

Face: 45 Degrees

Valve Spring Height, Installed: 1.89"

Minimum Valve Spring Pressure: 177 Pounds @ 1.45"

Valve Stem Clearance:

Intake: Tapered .0015"-.0035"

Exhaust: Tapered .0015"-.0032"

Valve Stem Diameter:

Intake: Tapered .3720"-.3730"

Exhaust: Tapered .3723-.3730"

Piston, Pins, Rings, Crankshaft, & Bearings, 350 Cu. In. V-8 Engines:

Piston Clearance: .0008"-.0020"

Ring End Gap:

Compression: .010"

Oil Control: .015"

Wrist Pin Diameter: .9393"

Rod Bearings:

Shaft Diameter: 2.000""

Rod Bearing Clearance: .0002"-.0023"

Main Bearings:

Shaft Diameter: 2.9995"

Main Bearing Clearance: .0004"-.0015"

Thrust on Bearing #3

Shaft End Play: .003"-.009"

Piston, Pins, Rings, Crankshaft, & Bearings, 455 Cu. In. V-8 Engine:

Piston Clearance: .0010"-.0016"

Ring End Gap:

Compression: .013"

Oil Control: .015"

Wrist Pin Diameter: .9993"

Rod Bearings:

Shaft Diameter: 2.249"-2.250"

Rod Bearing Clearance: .0002"-.0023"

Main Bearings:

Shaft Diameter: 3.250"

Main Bearing Clearance: .0007"-.0018"

Thrust on Bearing #3

Shaft End Play: .003"-.009"

Engine Tightening Specifications, 350 Cu. In. V-8 Engines:

Spark Plugs: 15 Ft. Lbs.

Cylinder Head Bolts: 75 Ft. Lbs.

Intake Manifold: 55 Ft. Lbs.

Exhaust Manifold: 18 Ft. Lbs.

Rocker Arm Shaft Bracket: 25 Ft. Lbs.

Rocker Arm Cover: 4 Ft. Lbs.

Connecting Rod Cap Bolts: 35 Ft. Lbs.

Main Bearing Cap Bolts: 95 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: 120 Lbs (Minimum)

Engine Tightening Specifications, 455 Cu. In. V-8 Engine:

Spark Plugs: 15 Ft. Lbs.

Cylinder Head Bolts: 100 Ft. Lbs.

Intake Manifold: 65 Ft. Lbs.

Exhaust Manifold: 18 Ft. Lbs.

Rocker Arm Shaft Bracket: 25 Ft. Lbs.

Rocker Arm Cover: 4 Ft. Lbs.

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 110 Ft. Lbs.

Flywheel to Crankshaft: 58 Ft. Lbs.

Vibration Damper or Pulley: 200. Lbs (Minimum)

Delco-Remy Distributor Specifications:

Distributor # 1112016

Advance Starts: 0 Degrees @ 350 RPM

Intermediate Advance: 4-1/2 to 6-1/2 Degrees @ 900 RPM

Full Advance: 12 Degrees @ 2,300 RPM

Maximum Advance:

Vacuum to Start Plunger: 6 to 8" Vacuum

Maximum Advance: 9 Degrees @ 16" Vacuum

Distributor # 1112109

Advance Starts: 0 Degrees @ 400 RPM

Intermediate Advance: 4-1/2 to 6-1/2 Degrees @ 900 RPM

Full Advance: 8 Degrees @ 1,500 RPM

Maximum Advance:

Vacuum to Start Plunger: 6 to 8" Vacuum

Maximum Advance: 9 Degrees @ 16" Vacuum

Distributor # 1112110

Advance Starts: 0 Degrees @ 500 RPM

Intermediate Advance: 6 to 8 Degrees @ 1,050 RPM

Full Advance: 9 Degrees @ 1,450 RPM

Maximum Advance:

Vacuum to Start Plunger: 6 to 8" Vacuum

Maximum Advance: 9 Degrees @ 13" Vacuum

Above listed distributors are for all models of Buick including those not included those not covered on this disk. Refer to the distributor number on your engine.

Delco-Remy Alternator & Regulator Specifications, All Series:

Alternator # 1102449

Rated Output: 37 Amperes

Field Current: 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Cold Output @ 14 Volts

2,000 RPM: 7 Amperes

5,000 RPM: 29 Amperes

Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.5 Volts

Alternator # 1102443

Rated Output: 42 Amperes

Field Current: 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Cold Output @ 14 Volts

2,000 RPM: 9 Amperes

5,000 RPM: 32 Amperes

Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.5 Volts

Alternator # 1102448

Rated Output: 55 Amperes

Field Current: 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Cold Output @ 14 Volts

2,000 RPM: 9 Amperes

5,000 RPM: 44 Amperes

Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.5 Volts

Alternator # 1102442

Rated Output: 55 Amperes

Field Current: 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Cold Output @ 14 Volts

2,000 RPM: 9 Amperes

5,000 RPM: 44 Amperes

Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.5 Volts

Alternator # 1102450

Rated Output: 61 Amperes

Field Current: 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Cold Output @ 14 Volts

2,000 RPM: 12 Amperes

5,000 RPM: 47 Amperes

Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.5 Volts

Alternator # 1102447

Rated Output: 63 Amperes

Field Current: 12 Volts @ 80 Degrees: 2.8 to 3.2 Amperes

Cold Output @ 14 Volts

2,000 RPM: 13 Amperes

5,000 RPM: 51 Amperes

Regulator #1119519

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.5 Volts

Note: The above alternators incude all series Buicks, including full sized models.

Delco-Remy Starting Motor Specifications, 350 Cu. In. V-8 Engine:

Starter # 1108391

Brush Spring Tension: 35 Ounces

No Load Test: 80 Amperes, 9 Volts @ 3,500 to 6,000 RPM

Delco-Remy Starting Motor Specifications, 455 Cu. In. V-8 Engine:

Starter # 1108392

Brush Spring Tension: 35 Ounces

No Load Test: 45-80 Amperes, 9 Volts @ 4,000 to 6,500 RPM

Rear Axle Data, All Series:

Carrier Type: Integral

Ring Gear & Pinion Backlash:

Method: Shim

Adjustment: .006"-.008"

Pinion Bearing Preload:

Method: Spacer

Adjustment:

New Bearings: 20-25 Inch Lbs.

Used Bearings: 10-15 Inch Lbs.

Differential Bearing Preload:

Method: Shim

Adjustment:

New Bearings: 35-40 Inch Lbs.

Used Bearings: 20-25 Inch Lbs.

Brake Specifications:

Skylark, Gran Sport 350 & Gran Sport 455:

Brake Drum Diameter: 9.495"-9.505"

Wheel Cylinder Bore:

Front Drum Brakes: 1-1/8"

Rear Drum Brakes: 7/8"

Master Cylinder Bore:

Disc Brakes: 1-1/8"

Drum Brakes: 1"

Power Brakes: 1"

Wheel Alignment Data, All Series:

Caster: - 1/2 Degrees

Camber:

Left: + 1/2 Degrees

Right: + 1/2 Degrees

Toe In: 1/8" to 1/4"

Toe Out on Turns:

Outer Wheel: 18-1/2 Degrees

Inner Wheel: 20 Degrees

Rochester Carburetor Specifications:

Carburetor Type: 2GC & 2GV

Part #: 7042142

Float Level: 15/32"

Float Drop: 1-11/32"

Pump Rod: 1-15/32"

Vacuum Break: .140"

Choke Rod: .080"

Choke Unloader: .180"

Part #: 7042143

Float Level: 15/32"

Float Drop: 1-11/32"

Pump Rod: 1-15/32"

Vacuum Break: .160"

Choke Rod: .080"

Choke Unloader: .180"

Part #: 7042842

Float Level: 15/32"

Float Drop: 1-11/32"

Pump Rod: 1-15/32"

Vacuum Break: .140"

Choke Rod: .080"

Choke Unloader: .180"

Carburetor Type: Quadrajet 4MC & 4MV

Part #: 7042240

Float Level: 3/8"

Pump Rod Hole: Inner Hole

Pump Rod Adjustment: 1/4"

Choke Rod: .130"

Vacuum Break: .180"

Air Valve Dashpot: .030"

Choke Unloader: .335"

Air Valve Lockout: .015"

Secondary Metering Rods: 53/64"

Air Valve/Valve Spring Windup: 1/2"

Part #: 7042242

Float Level: 3/8"

Pump Rod Hole: Inner Hole

Pump Rod Adjustment: 1/4"

Choke Rod: .130"

Vacuum Break: .200"

Air Valve Dashpot: .030"

Choke Unloader: .335"

Air Valve Lockout: .015"

Secondary Metering Rods: 53/64"

Air Valve/Valve Spring Windup: 1/2"

Part #: 7042243

Float Level: 15/32"

Pump Rod Hole: Inner Hole

Pump Rod Adjustment: 1/4"

Choke Rod: .130"

Vacuum Break: .215"

Air Valve Dashpot: .030"

Choke Unloader: .335"

Air Valve Lockout: .015"

Secondary Metering Rods: 53/64"

Air Valve/Valve Spring Windup: 1/2"

Part #: 7042244, 7042245

Float Level: 15/32"

Pump Rod Hole: Inner Hole

Pump Rod Adjustment: 9/32"

Choke Rod: .130"

Vacuum Break: .170"

Air Valve Dashpot: .030"

Choke Unloader: .335"

Air Valve Lockout: .015"

Secondary Metering Rods: 53/64"

Air Valve/Valve Spring Windup: 1/2"

Part #: 7042940

Float Level: 3/8"

Pump Rod Hole: Inner Hole

Pump Rod Adjustment: 1/4"

Choke Rod: .130"

Vacuum Break: .180"

Air Valve Dashpot: .030"

Choke Unloader: .335"

Air Valve Lockout: .015"

Secondary Metering Rods: 53/64"

Air Valve/Valve Spring Windup: 1/2"

Part #: 7042942

Float Level: 3/8"

Pump Rod Hole: Inner Hole

Pump Rod Adjustment: 1/4"

Choke Rod: .130"

Vacuum Break: .200"

Air Valve Dashpot: .030"

Choke Unloader: .335"

Air Valve Lockout: .015"

Secondary Metering Rods: 53/64"

Air Valve/Valve Spring Windup: 1/2"

Part #: 7042944

Float Level: 15/32"

Pump Rod Hole: Inner Hole

Pump Rod Adjustment: 9/32"

Choke Rod: .130"

Vacuum Break: .170"

Air Valve Dashpot: .030"

Choke Unloader: .335"

Air Valve Lockout: .015"

Secondary Metering Rods: 53/64"

Air Valve/Valve Spring Windup: 1/2"

Note: All Buick Carburetors for 1972 are listed including those for Full Sized Buick Models.

1972 Buick Paint Codes & Colors:

11 Arctic White

14 Silver Mist

18 Charcoal Mist

19 Regal Black

21 Crystal Blue

24 Cascade Blue

26 Stratomist Blue

28 Royal Blue

36 Heritage Green

41 Seamist Green

45 Emerald Mist

48 Hunter Green

50 Covert Tan

53 Cortez Gold

54 Champagne Gold

56 Sunburst Yellow

57 Antique Gold

62 Sierra Tan

63 Burnished Copper

65 Flame Orange

67 Deep Chestnut

69 Nutmeg Poly

73 Vantage Red

75 Fire Red

77 Burnished Bronze

Popular Options:

Air Conditioning, Power Windows, Vinyl Top. Tilt Steering Wheel, Chrome Spoke Wheels, AM Radio, AM-FM Stereo Radio, Power Seats, Power Door Locks, Intermittend Wipers, Remote Side Mirror, Child Safety Seat. Automatic Level Control, Automatic Transmission, Limited Slip Differential, 8 Cylinder Engine Options.

GS Options:

GSX Grille Emblem, GSX Equipment for GS 455, Center Console, Sport Mirrors, Instrument Panel Gauges, Front Spoiler, Ralley Steering Wheel.

1972 Buick Historical Data:

1972 Buick Model Year Production for Buick Skylark & GS: 225,346.

Total Buick Production including, GS, Skylark, and Full Sized Models: 679,961.

The 17 millionth Buick was produced in December, 1972.

Promotional Model Cars Available:

Plastic: None.