1970 BUICK SKYLARK, GRAN SPORT, &
SPORT WAGON
Models:
Buick Skylark, Series 43300, 6 & 8 Cylinder
Buick Skylark 350, Series 43500, 8 Cylinder
Buick Skylark Custom, Series 44400, 6 & 8 Cylinder
Buick Sport Wagon Custom, Series 43400, 8 Cylinder
Buick Gran Sport 350, Series 43400, 8 Cylinder
Buick Gran Sport 455, Series 46600, 8 Cylinder
Buick Skylark:
4 Door Sedan, 6 Passenger, Model 43369,
Base Price: $3,228; Shipping Weight: 3,409 Pounds
Production Total: 13,420
2 Door Coupe, 6 Passenger, Model 43327
Base Price: $3,177; Shipping Weight: 3,350 Pounds
Production Total: 18,620
Buick Skylark 350:
4 Door Sedan, 6 Passenger, Model 43569,
Base Price: $3,350; Shipping Weight: 3,418 Pounds
Production Total: 30,281
2 Door Coupe, 6 Passenger, Model 43537
Base Price: $3,351; Shipping Weight: 3,375 Pounds
Production Total: 70,918
Buick Skylark Custom:
4 Door Sedan, 6 Passenger, Model 44469,
Base Price: $3,482; Shipping Weight: 3,499 Pounds
Production Total: 7,113
2 Door Hardtop Coupe, 6 Passenger, Model 44437
Base Price: $3,513; Shipping Weight: 3,435 Pounds
Production Total: 36,367
4 Door Hardtop, 6 Passenger, Model 44439,
Base Price: $3,601; Shipping Weight: 3,565 Pounds
Production Total: 12,411
2 Door Convertible Coupe, 6 Passenger, Model 44467
Base Price: $3,656; Shipping Weight: 3,499 Pounds
Production Total: 4,954
Total Skylark Production: 194,084.
Buick Custom Sport Wagon:
4 Door Station Wagon, 9 Passenger, Model 44466
Base Price: $3,623; Shipping Weight: 3,998 Pounds
Production Total: 10,002
4 Door Station Wagon, 6 Passenger, Model 44435
Base Price: $3,591; Shipping Weight: 3,775 Pounds
Production Total: 2,239
Total Sport Wagon Production: 12,241
Buick Gran Sport 350:
2 Door Coupe, 5 Passenger, Model 43437
Base Price: $3,479; Shipping Weight: 3,434 Pounds
Production Total: 9,948
Buick Gran Sport 455:
2 Door Hardtop Coupe, 6 Passenger, Model 44637
Base Price: $3,685; Shipping Weight: 3,562 Pounds
Production Total: 68,732
2 Door Convertible Coupe, 6 Passenger, Model 44667
Base Price: $3,871; Shipping Weight: 3,619 Pounds
Production Total: 1,416
Total Gran Sport 455 Production: 10,148.
Chassis:
Wheelbase:
Skylark 2 Door: 112"
Skylark 4 Door: 116"
Sport Wagons: 116"
Tire Sizes:
Skylark: G78 X 14"
Sport Wagon: G78 X 14"
Major Engine Specifications, Buick Special, Inline 6 Engine, 155 H.P.:
Engine Type: Overhead Valve Inline 6 Cylinder
Engine Bore & Stroke: 3.875" X 3.53"
Engine Displacement: 250 Cu. In.
Compression Ratio: 8.50:1
Taxable Horsepower: 36.04
Horsepower: 155 @ 4,200 RPM
Torque: 235 Ft. Lbs. @ 1,600 RPM
Normal Oil Pressure: 30-45 PSI
Carburetor: 1 Barrel
Major Engine Specifications, 350 Cubic Inch V-8 Engine, 260 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: 9.00:1
Taxable Horsepower: 46.21
Horsepower: 260 @ 4,600 RPM
Torque: 360 Ft. Lbs. @ 2,600 RPM
Normal Oil Pressure: 37 PSI
Carburetor: 2 Barrel
Major Engine Specifications, 350 Cubic Inch V-8 Engine, 285 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: 9.00:1
Taxable Horsepower: 46.21
Horsepower: 285 @ 4,600 RPM
Torque: 375 Ft. Lbs. @ 3,000 RPM
Normal Oil Pressure: 37 PSI
Carburetor: 4 Barrel
Major Engine Specifications, 350 Cubic Inch V-8 Engine, 315 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: 10.25:1
Taxable Horsepower: 46.21
Horsepower: 315 @ 4,800 RPM
Torque: 410 Ft. Lbs. @ 3,200 RPM
Normal Oil Pressure: 37 PSI
Carburetor: 4 Barrel
Major Engine Specifications, 455 Cubic Inch V-8 Engine, 350 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: 10.00:1
Taxable Horsepower: 59.51
Horsepower: 350 @ 4,600 RPM
Torque: 510 Ft. Lbs. @ 2,800 RPM
Normal Oil Pressure: 40 PSI
Carburetor: 4 Barrel
Major Engine Specifications, 455 Cubic Inch V-8 Engine, 360 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: 10.00:1
Taxable Horsepower: 59.51
Horsepower: 360 @ 4,600 RPM
Torque: 510 Ft. Lbs. @ 2,800 RPM
Normal Oil Pressure: 40 PSI
Carburetor: 4 Barrel
Engine Available by Model:
155 HP I-6, 250 Cu. In. Standard Skylark
260 HP V-8, 350 Cu. In. Standard on Sport Wagon & Skylark Custom. Optional on Skylark
285 HP V-8, 350 Cu. In. Optional on Sport Wagon & Skylark.
350 HP V-8, 455 Cu. In. Standard on Gran Sport 455.
360 HP V-8, 455 Cu. In. Standard on Gran Sport 455, Stage I
Capacities, Skylark, 6 Cylinder:
Cooling System:
With Heater: 16.04 Quarts
With Air Conditioning: 16.04 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: 10 Quarts
Oil Pan Only: 3 Quarts
Rear Axle Capacity: 3 Pints
* Add 1 Quart for Oil Filter.
Capacities, Skylark, 8 Cylinder, 350 Cu. In. Engine:
Cooling System:
With Heater: 16.45 Quarts
With Air Conditioning: 16.52 Quarts
Radiator Cap Pressure:
With Air Conditioning: 15 PSI
Without Air Conditioning: 15 PSI
Thermostat Opening: 190 Degrees
Fuel Tank: 20 Gallons (Sport Wagon: 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: 3 Pints
* Add 1 Quart for Oil Filter.
Capacities, 8 Cylinder, Gran Sport 455 Cu. In. Engine:
Cooling System:
With Heater: 19.17 Quarts
With Air Conditioning: 19.67 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: 4 Pints
4 Speed: 3 Pints
Automatic Transmission Capacity:
Total Capacity: 11-1/2 Quarts
Oil Pan Only: 3-1/2 Quarts
Rear Axle Capacity: 3 Pints
* Add 1 Quart for Oil Filter.
Tune-Up Data, 6 Cylinder Engine:
Spark Plug Type: AC R46N
Spark Plug Gap: .035"
Ignition Point Gap: .019"
Distributor Cam Angle: 32 Degrees
Firing Order: 1-5-3-6-2-4
Ignition Timing Mark & Location:
Manual Transmission: TDC on Damper
Automatic Transmission: 4 Degrees BTDC
Engine Idle Speed:
Manual Transmission: 700 RPM
Automatic Transmission: 550 RPM in Drive
Tune-Up Data, 8 Cylinder, 350 Cu. In. Engine:
Spark Plug Type: AC R45TS
Spark Plug Gap: .030"
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: 6 Degrees BTDC
Engine Idle Speed:
Manual Transmission: 700 RPM
Automatic Transmission: 600 RPM, in Drive
Tune-Up Data, 8 Cylinder, 455 Cu. In. Engine:
Spark Plug Type: AC R44TS
Spark Plug Gap: .030"
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: 6 Degrees BTDC
Early Gran Sport: TDC
Engine Idle Speed:
Manual Transmission: 700 RPM
Automatic Transmission: 600 RPM
Valve Data, 6 Cylinder 250 Cu. In. Engine:
Valve Lash: 1 Turn
Valve Seat Angle:
Seat: 46 Degrees
Face: 45 Degrees
Valve Spring Height, Installed: 1.66"
Minimum Valve Spring Pressure: 185 Pounds @ 1.27"
Valve Stem Clearance:
Intake: Tapered .001"-.0027"
Exhaust: Tapered .001"-.0027"
Valve Stem Diameter:
Intake: Tapered .3410"-.3417"
Exhaust: Tapered .3410-.3417"
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"-.0035"
Valve Stem Diameter:
Intake: Tapered .3720"-.3730"
Exhaust: Tapered .3720"-.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"-.0035"
Valve Stem Diameter:
Intake: Tapered .3720"-.3730"
Exhaust: Tapered .3720-.3730"
Piston, Pins, Rings, Crankshaft, & Bearings, 250 Cu. In. I-6 Engine:
Piston Clearance: .0005"-.0011"
Ring End Gap:
Compression: .010"
Oil Control: .015"
Wrist Pin Diameter: .9271"
Rod Bearings:
Shaft Diameter: 1.999"-2.000""
Rod Bearing Clearance: .0007"-.0027"
Main Bearings:
Shaft Diameter: 2.3004"
Main Bearing Clearance: .0003"-.0029"
Thrust on Bearing #7
Shaft End Play: .002"-.006"
Piston, Pins, Rings, Crankshaft, & Bearings, 350 Cu. In. V-8 Engines:
Piston Clearance: .0008"-.0014"
Ring End Gap:
Compression: .013"
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"-.0022"
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: 3.2500"
Main Bearing Clearance: .0007"-.0018"
Thrust on Bearing #3
Shaft End Play: .003"-.009"
Engine Tightening Specifications, 250 Cu. In. I-6 Engines:
Spark Plugs: 25 Ft. Lbs.
Cylinder Head Bolts: 95 Ft. Lbs.
Intake Manifold:
End Clamps: 20 Ft. Lbs
Center Bolts: 30 Ft. Lbs.
Exhaust Manifold:
End Clamps: 20 Ft. Lbs
Center Bolts: 30 Ft. Lbs.
Rocker Arm Cover: 5 Ft. Lbs.
Connecting Rod Cap Bolts: 35 Ft. Lbs.
Main Bearing Cap Bolts: 65 Ft. Lbs.
Flywheel to Crankshaft: 60 Ft. Lbs.
Vibration Damper or Pulley: Pressed On
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: 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: 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 # 1111962
Advance Starts: 0 to 1 Degrees @ 600 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 # 1111984
Advance Starts: 0 to 1 Degrees @ 600 RPM
Intermediate Advance: 0-1/2 to 11-1/2 Degrees @ 900 RPM
Full Advance: 17 Degrees @ 2,300 RPM
Maximum Advance:
Vacuum to Start Plunger: 6 to 8" Vacuum
Maximum Advance: 9 Degrees @ 16" Vacuum
Distributor # 1111986
Advance Starts: 0 to 1 Degrees @ 475 RPM
Intermediate Advance: 9-1/2 to 11-1/2 Degrees @ 975 RPM
Full Advance: 17 Degrees @ 2,300 RPM
Maximum Advance:
Vacuum to Start Plunger: 6 to 8" Vacuum
Maximum Advance: 9 Degrees @ 16" Vacuum
Distributor # 1112006
Advance Starts: 0 to 1 Degrees @ 600 RPM
Intermediate Advance: 8-1/2 to 10-1/2 Degrees @ 900 RPM
Full Advance: 15 Degrees @ 2,300 RPM
Maximum Advance:
Vacuum to Start Plunger: 6 to 8" Vacuum
Maximum Advance: 9 Degrees @ 16" 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 # 1100761
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: 13.6 to 14.4 Volts
Alternator # 1100888
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: 13.6 to 14.4 Volts
Alternator # 1100691
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: 13.6 to 14.4 Volts
Alternator # 1100774
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: 13.6 to 14.4 Volts
Alternator # 1100892
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: 13.6 to 14.4 Volts
Alternator # 1100860
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: 13.6 to 14.4 Volts
Note: The above alternators incude all series Buicks, including full sized models.
Delco-Remy Starting Motor Specifications, 250 Cu. In. I-6 Engine:
Starter # 1108365
Brush Spring Tension: 35 Ounces
No Load Test: 49-87 Amperes, 10.6 Volts @ 6,200 to 10,700 RPM
Resistance Test: 290-425 Amperes @ 4.2 Volts
Delco-Remy Starting Motor Specifications, 350 Cu. In. V-8 Engine:
Starter # 1108391
Brush Spring Tension: 35 Ounces
No Load Test: 55-85 Amperes, 9 Volts @ 3,100 to 4,900 RPM
Delco-Remy Starting Motor Specifications, 455 Cu. In. V-8 Engine:
Starter # 1108392
Brush Spring Tension: 35 Ounces
No Load Test: 48-74 Amperes, 9 Volts @ 4,100 to 6,300 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"
Sport Wagon:
Brake Drum Diameter: 9.495"-9.505"
Wheel Cylinder Bore:
Front Drum Brakes: 1-1/8"
Rear Drum Brakes: 1"
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
Part #: 7029142, 7040466
Float Level: 15/32"
Float Drop: 1-7/32"
Pump Rod: 1-13/32"
Vacuum Break: .150"
Choke Rod: .080"
Choke Unloader: .180"
Part #: 7029143
Float Level: 15/32"
Float Drop: 1-7/32"
Pump Rod: 1-15/32"
Vacuum Break: .190"
Choke Rod: .100"
Choke Unloader: .200"
Carburetor Type: Quadrajet 4MC & 4MV
Part #: 7040240
Float Level: 3/8"
Pump Rod Hole: Inner Hole
Pump Rod Adjustment: 9/32"
Choke Rod: .130"
Vacuum Break: .180"
Air Valve Dashpot: .030"
Choke Unloader: .335"
Secondary Metering Rods: 53/64"
Air Valve/Valve Spring Windup: 1/2"
Part #: 7040243
Float Level: 3/8"
Pump Rod Hole: Inner Hole
Pump Rod Adjustment: 9/32"
Choke Rod: .130"
Vacuum Break: .215"
Air Valve Dashpot: .030"
Choke Unloader: .335"
Secondary Metering Rods: 53/64"
Air Valve/Valve Spring Windup: 1/2"
Part #: 7040244
Float Level: 5/16"
Pump Rod Hole: Outer Hole
Pump Rod Adjustment: 13/32"
Choke Rod: .130"
Vacuum Break: .170"
Air Valve Dashpot: .030"
Choke Unloader: .335"
Air Valve Lockout: .045"
Secondary Metering Rods: 53/64"
Air Valve/Valve Spring Windup: 1/2"
Part #: 7040245
Float Level: 5/16"
Pump Rod Hole: Outer Hole
Pump Rod Adjustment: 13/32"
Choke Rod: .130"
Vacuum Break: .215"
Air Valve Dashpot: .030"
Choke Unloader: .335"
Secondary Metering Rods: 53/64"
Air Valve/Valve Spring Windup: 1/2"
Part #: 7040246
Float Level: 5/16"
Pump Rod Hole: Inner Hole
Pump Rod Adjustment: 9/32"
Choke Rod: .130"
Vacuum Break: .200"
Air Valve Dashpot: .030"
Choke Unloader: .335"
Secondary Metering Rods: 53/64"
Air Valve/Valve Spring Windup: 1/2"
Part #: 7040247
Float Level: 3/8"
Pump Rod Hole: Inner Hole
Pump Rod Adjustment: 9/32"
Choke Rod: .130"
Vacuum Break: .160"
Air Valve Dashpot: .030"
Choke Unloader: .325"
Secondary Metering Rods: 53/64"
Air Valve/Valve Spring Windup: 1/2"
Rochester Monojet, M & MV:
Part #: 7040014
Initial Idle Screw Adjustment: 2 Turns Open
Float Level: 1/4"
Metering Rod: .070"
Idle Vent: .050"
Choke Rod: .170"
Vacuum Brak: .245"
Unloader: .350"
Fast Idle Speed: 650 RPM
Part #: 7040015
Initial Idle Screw Adjustment: 2 Turns Open
Float Level: 1/4"
Metering Rod: .140"
Idle Vent: .050"
Choke Rod: .200"
Vacuum Brake: .275"
Unloader: .350"
Fast Idle Speed: 900 RPM
Part #: 7040017
Float Level: 1/4"
Metering Rod: .070"
Fast Idle, on Car: .100"
Choke Rod: .190"
Vacuum Brake: .230"
Unloader: .350"
Fast Idle Speed: 900 RPM
Note: All Buick Carburetors for 1970 are listed including those for Buick Special Models.
1970 Buick Paint Codes & Colors:
10 Glacier White
14 Silver Mist
16* Tealmist Gray
19 Regal Black
20 Azure Blue
25* Gulfstream Blue
26 Stratomist Blue
28* Diplomat Blue
34* Aqua Mist
45* Seamist Green
46 Emerald Mist
48* Sherwood Green
50 Bamboo Cream
55* Coronet Gold
58* Harvest Gold
61 Sandpiper beige
63* Desert Gold
68* Burnsihed Saddle
74 Titian Red
75* Fire Red
76 Sunset Sage
78 Burgundy Mist
Saturn Yellow (GSX)
* Riviera Colors
Popular Options, Skylark:
AM Radio, AM/FM Radio, AM/FM Radio with Stereo Tape, Air Conditioning, Power Steering, Power Brakes, Power Windows (except 6 Cylinder); 350 Cu. In. Engine, Automatic Transmission, 4 Speed Manual Transmission, Padded Dash, Back-Up Lights, Remote Control Outside Mirror, Bucket Seats, DeLuxe Wheel covers, Simulated Wire Wheel Covers, 5 Spoke Wire Chrome Wheels, Two Tone Paint, Luggage Rack for Sport Wagons, Tachometer, GSX Package for Gran Sport; Tilt Steering Wheel, Tinted Glass..
1970 Buick Historical Data:
1970 Buick Model Year Production for Buick Skylarks, Gran Sports & Sport Wagons: 226,421.
Total Buick Production including Sport Wagons, Gran Sports, Skylarks and Full Sized Models: 666,501.
Promotional Model Cars Available:
Plastic: None.
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