1957 BUICK

Models:

Buick Special, Series 40, 8 Cylinder

Buick Super, Series 50, 8 Cylinder

Buick Century, Series 60, 8 Cylinder

Buick Roadmaster, Series 70, 8 Cylinder

Buick Roadmaster, Series 75, 8 Cylinder

Buick Special, Series 40, 8 Cylinder:

Body Data & Pricing:

4 Door Sedan, 6 Passenger, Model 41, Body #57-4469

Base Price: $2,660; Shipping Weight: 4,012 Pounds; Production Total: 59,739

4 Door Hardtop, 6 Passenger, Model 43, Body #57-4439

Base Price: $2,780; Shipping Weight: 4,041 Pounds; Production Total: 50,563

2 Door Sedan, 6 Passenger, Model 48, Body #57-4411

Base Price: $2,596; Shipping Weight: 3,955 Pounds; Production Total: 23,180

2 Door Hardtop Coupe, 6 Passenger, Model 46R, Body #57-4437

Base Price: $2,704; Shipping Weight: 3,956 Pounds; Production Total: 64,425

2 Door Convertible Coupe, 6 Passenger, Model 46C, Body #57-4467

Base Price: $2,987; Shipping Weight: 4,082 Pounds; Production Total: 8,505

4 Door Station Wagon, 6 Passenger, Model 49, Body #57-4482

Base Price: $3,047; Shipping Weight: 4,292 Pounds; Production Total: 7,013

4 Door Riviera Station Wagon, 6 Passenger, Model 49D, Body #57-4481

Base Price: $3,167; Shipping Weight: 4,309 Pounds; Production Total: 6,817

Total Series Production: 220,242.

Buick Super, Series 50, 8 Cylinder

Body Data & Pricing:

4 Door Hardtop, 6 Passenger, Model 53, Body #57-4539

Base Price: $3,681; Shipping Weight: 4,356 Pounds; Production Total: 41,665

2 Door Hardtop Coupe, 6 Passenger, Model 56R, Body #57-4537

Base Price: $3,536; Shipping Weight: 4,271 Pounds; Production Total: 26,529

2 Door Convertible Coupe, 6 Passenger, Model 56C, Body #57-4567

Base Price: $3,981; Shipping Weight: 4,414 Pounds; Production Total: 2,056

Total Series Production: 70,250.

Buick Century, Series 60, 8 Cylinder:

Body Data & Pricing:

4 Door Sedan, 6 Passenger, Model 61, Body #57-4669

Base Price: $3,234; Shipping Weight: 4,137 Pounds; Production Total: 8,075

4 Door Hardtop, 6 Passenger, Model 63, Body #57-4639

Base Price: $3,354; Shipping Weight: 4,163 Pounds; Production Total: 26,589

2 Door Hardtop Coupe, 6 Passenger, Model 66R, Body #57-4637

Base Price: $3,270; Shipping Weight: 4,081 Pounds; Production Total: 17,029

2 Door Convertible Coupe, 6 Passenger, Model 66C, Body #57-4667X

Base Price: $3,598; Shipping Weight: 4,234 Pounds; Production Total: 4,085

4 Door Station Wagon, 6 Passenger, Model 69, Body #57-4682

Base Price: $3,706; Shipping Weight: 4,423 Pounds; Production Total: 10,186

Total Series Production: 65,965.

Buick Roadmaster, Series 70, 8 Cylinder

Body Data & Pricing:

4 Door Hardtop, 6 Passenger, Model 73, Body #57-4739

Base Price: $4,053; Shipping Weight: 4,469 Pounds; Production Total: 11,401

4 Door Hardtop, 6 Passenger, Model 73A, Body #57-4739A

Base Price: $4,053; Shipping Weight: 4,455 Pounds; Production Total: 10,526

2 Door Hardtop, 6 Passenger, Model 76A, Body #57-4737A

Base Price: $3,944; Shipping Weight: 4,370 Pounds; Production Total: 2,812

2 Door Hardtop, 6 Passenger, Model 76R, Body #57-4737

Base Price: $3,944; Shipping Weight: 4,374 Pounds; Production Total: 3,826

2 Door Convertible Coupe, 6 Passenger, Model 76C, Body #57-4767X

Base Price: $4,066; Shipping Weight: 4,500 Pounds; Production Total: 4,364

Total Series Production: 32,929

Buick Roadmaster, Series 75, 8 Cylinder

Body Data & Pricing:

4 Door Hardtop, 6 Passenger, Model 75, Body #57-4839

Base Price: $4,483; Shipping Weight: 4,539 Pounds; Production Total: 12,250

2 Door Hardtop, 6 Passenger, Model 75R, Body #57-4847

Base Price: $4,373; Shipping Weight: 4,427 Pounds; Production Total: 2,404

Total Series Production: 14,654.

Major Specifications, Buick Special, Model 40:

Wheelbase: 122",

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 4.125" X 3.4"

Engine Displacement: 364.0 Cu. In.

Compression Ratio: 9.5:1

Taxable Horsepower: 54.45

Horsepower: 250 @ 4,400 RPM

Torque: 380 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 40 PSI

Tire Size: 7.10 X 15 Inches

Major Specifications, Buick Super, Series 50

Wheelbase: 127

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 4.125" X 3.4"

Engine Displacement: 364.0 Cu. In.

Compression Ratio: 10.0:1

Taxable Horsepower: 54.45

Horsepower: 300 @ 4,600 RPM

Torque: 400 Ft. Lbs. @ 3,200 RPM

Normal Oil Pressure: 40 PSI

Tire Size: 7.60 X 15 Inches

Major Specifications, Buick Century, Series 60

Wheelbase: 122

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 4.125" X 3.4"

Engine Displacement: 364.0 Cu. In.

Compression Ratio: 10.0:1

Taxable Horsepower: 54.45

Horsepower: 300 @ 4,600 RPM

Torque: 400 Ft. Lbs. @ 3,200 RPM

Normal Oil Pressure: 40 PSI

Tire Size: 7.60 X 15 Inches

Major Specifications, Buick Roadmaster, Model 70

Wheelbase: 127"

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 4.125" X 3.4"

Engine Displacement: 364.0 Cu. In.

Compression Ratio: 10.0:1

Taxable Horsepower: 54.45

Horsepower: 300 @ 4,600 RPM

Torque: 400 Ft. Lbs. @ 3,200 RPM

Normal Oil Pressure: 40 PSI

Tire Size: 8.00 X 15 Inches

Capacities, All Series:

Cooling System:

Without Heater: 16-1/2 Quarts

With Heater: 18

Radiator Cap Pressure: 13 PSI

Fuel Tank: 20 Gallons

Engine Oil: 5 Quarts

Manual Transmission Capacity: 2-1/2 Pints

Dynaflow Transmission Capacity: 11 Quarts

Rear Axle Capacity: 6 Pints

Tune-Up Data, All Series:

Ground Polarity: Negative, 12 Volts

Spark Plug Type: AC 44, or equivalent

Spark Plug Gap: .032"

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

Distributor Cam Angle: 30 Degrees

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

Ignition Timing Mark & Location: Timining Mark Aligned with"5" on Indicator Located on Damper

Engine Idle Speed: 485 RPM

Cylinder Head Tension: 65-75 Ft Lbs

Compression Pressure @ Cranking Speed: 185 PSI

Valve Data, Buick Special, Series 40:

Tappet Clearance:

Intake: Zero

Exhaust: Zero

Valve Seat Angle: 45 Degrees

Valve Timing:

Intake Valve Opens: 25 Degrees BTDC

Exhaust Valve Closes: 37 Degrees ATDC

Minimum Valve Spring Pressure (New Spring):

Inner Spring: 63 Pounds @ 1.20"

Outer Spring: 93 Pounds @ 1.10"

Valve Lift @ Zero Lash::

Intake: .423"

Exhaust: .423"

Valve Stem Clearance:

Intake: .0015"-.0035"

Exhaust: .003"-.005"

Valve Stem Diameter:

Intake: .3720"

Exhaust: .3710"

Valve Data, Series 50, 60, 70, & 75:

Tappet Clearance:

Intake: Zero

Exhaust: Zero

Valve Seat Angle: 45 Degrees

Valve Timing:

Intake Valve Opens: 34 Degrees BTDC

Exhaust Valve Closes: 41 Degrees ATDC

Minimum Valve Spring Pressure (New Springs):

Inner Spring: 63 Pounds @ 1.20"

Outer Spring: 93 Pounds @ 1.10"

Valve Lift @ Zero Lash::

Intake: .423"

Exhaust: .423"

Valve Stem Clearance:

Intake: .0015"-.0035"

Exhaust: .003"-.005"

Valve Stem Diameter:

Intake: .3720"

Exhaust: .3710"

Piston, Pins, Rings, Crankshaft, & Bearings, All Series:

Fitting Pistons:

Shim Thickness to Use: .003"

Pounds Pull on Scale: 7-13

Ring End Gap:

Compression: .010"

Oil Control: .015"

Wrist Pin Diameter: .9995"

Rod Bearings:

Shaft Diameter: 2.249"-2.250"

Rod Bearing Clearance: .0002"-.002"

Rod Bolt Torque: 40-45 Ft. Lbs.

Main Bearings:

Shaft Diameter: 2.498"-2.499"

Main Bearing Clearance: .0005"-.0025"

Main Bolt Torque: 100-110 Ft. Lbs.

Delco-Remy Distributor Specifications, All Series:

Distributor # 1110870

Rotation: Clockwise

Cam Angle: 30 Degrees

Point Opening: Turn adjusting screw in until engine misfires, then back off 1/2 turn.

Condensor Capacity: .18-.23 Mfds

Breker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 475 RPM

Full Advance: 13 Degrees @ 1,875 RPM

Vacuum Advance Data

Inches of Vacuum to Start Plunger Movement: 6.5 to 8.5

Inches of Vacuum for Full Plunger Travel: 12 to14

Maximum Vacuum Advance: 9 to 10-1/2 Degrees

Delco-Remy Generator & Regulator Specifications, All Series:

Generator # 1102066

Direction of Rotation: Clockwise

Ground Polarity: Negative

Generator Output: 35 Amperes @ 2,510 RPM

Brush Spring Tension 28 Ounces

Field Current: 1.62 to 1.82 Amperes

Regulator #: 1119168

Cutout Relay:

Voltage to Close Points: 12.4 Volts

Armature Air Gap: .020"

Voltage Regulator Setting: 14.2 Volts

Current Regulator Setting: 35 Amperes

Current & Voltage Armature Air Gap: .075"

Delco-Remy Starting Motor Specifications, All Series:

Starter # 1107667

Rotation: Clockwise

Brush Spring Tension: 35 Ounces

No Load Test: 100 Amperes, 10.6 Volts @ 5,100 RPM

Torque Test: 330 Amperes, 3.5 Volts;

Rear Axle & Brake Data, All Series:

Ring Gear & Pinion Backlash: .007" to .009"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: Spacers

Axle Shaft End Play: .005" to .020"

Wheel Cylinder Bore:

Front: 1-1/8"

Rear: 1"

Master Cylinder Bore:

Standard Brakes: 1"

Power Brakes: 21/32"

Wheel Alignment Data, All Series:

Caster: - 1-3/4 Degrees

Camber: +1/2 Degrees

Toe In: 1/16" to 1/8"

Toe Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel:

Manual Steering: 23 Degrees

Power Steering: 21-3/4 Degrees

Kingpin Inclination: 8 Degrees 0 Camber

Stromberg Carburetor Adjustments:

Carburetor Type: WW

Code #: 7-106C

Fuel Level: 5/8"

Float Setting: 7/32"

Start Aid Setting: #53 Drill

Wide Open Kick Setting: #27 Drill

Choke or Vacuum Kick Setting: Index

Fast Idle Speed Setting: #55 Drill

Choke Positioning Spring Setting: #4 Drill

Pump Travel Setting: 7/8"

Starting Switch Setting: 17/64 Drill Gauge with Test Lamp On.

Rochester Carburetor Specifications:

Carburetor Type: 4GC

Part #: 7010070, 7011570

Float Level: 1-3/8"

Float Drop: 1-13/16"

Idle Screw Setting: 1-1/4 Turns to Open

Choke Setting: Index

Pump Rod: 1-1/64"

Fast Idle Setting: .024"

Choke Rod: .148"

Choke Unloader: .128"

Secondary Throttle Lockout: .015"

Secondary Throttle Contour Clearance: .030"

Carter Carburetor Specifications:

Carburetor Model #AFB

Carburetor Part # 2507S

Float Level: 7/32"

Float Drop: 23/32"

Idle Screw Setting, 3/4 to 1-3/4 Turns to Open

Pump Stroke: 33/64"

Choke Piston Lever: .045"

Choke Shaft Lever: .010"

Fast Idle Throttle Valve Clearance: .026"

Unloader Setting: 3/16"

Secondary Throttle Lever: .017"-.022"

Automatic Choke Setting: Index

Carburetor Model #WGD

Carburetor Part # 2529S

Float Level: 17/64"

Idle Screw Setting, 1/2 to 1-1/2 Turns to Open

Choke Lever Clearance: .020"

Fast Idle Throttle Clearance: .026"

Unloader Choke Valve Clearance: 9/64"

Automatic Choke Setting: 1 Lean

Starter Switch Setting: 31/64" to 11/16"

Carburetor Model #WGD

Carburetor Part # 2536S

Float Level: 17/64"

Idle Screw Setting, 1/2 to 1-1/2 Turns to Open

Choke Lever Clearance: .020"

Fast Idle Throttle Clearance: .026"

Unloader Choke Valve Clearance: 11/64"

Automatic Choke Setting: Index

Starter Switch Setting: 31/64" to 11/16"

Popular Options, All Series:

Sonomatic Radio; Selectronic Radio; Power Antenna; Rear Seat Speaker (except Convertibles & Station Wagons); Electric Clock; License Plate Frames; Vent Shades; Tissue Dispenser, Vanity Visor Mirror; Air Conditioning; Power Windows; 6-Way Power Seat; Padded Instrument Panel; Seat Belts; Full WheelCovers; Wire Spoke Wheels; Power Brakes; Power Steering; Gas Door Guard; Windshield Washer; Trunk Light, Spot Light; Dynaflow Transmission on series 40, 50, & 60.

1957 Buick Paint Codes & Colors:

C Dover White

D Starlight Blue

E Biscay Blue

F Mariner Blue

H Kearney Green

J Belmont Green

K Mint Green

L Jade Green

N Garnet Red

R Antique Ivory

S Artic Blue

T Dawn Gray

U Gulf Green

Y Dusk Rose

1957 Buick Historical Data:

1957 Buick Model Year Production: 404,040.

Promotional Model Cars Available:

Plastic: Roadmaster 4 Door Hardtop & Roadmaster Convertible

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