1955 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 Special, Series 40, 8 Cylinder:

Body Data & Pricing:

4 Door Sedan, 6 Passenger, Model 41, Body #55-4469

Base Price: $2,291; Shipping Weight: 3,745 Pounds; Production Total: 84,182

4 Door Hardtop, 6 Passenger, Model 43, Body #55-4439

Base Price: $2,409; Shipping Weight: 3,820 Pounds; Production Total: 66,409

2 Door Sedan, 6 Passenger, Model 48, Body #55-4411

Base Price: $2,232; Shipping Weight: 3,715 Pounds; Production Total: 61,879

2 Door Hardtop Coupe, 6 Passenger, Model 46R, Body #55-4437

Base Price: $2,332; Shipping Weight: 3,720 Pounds; Production Total: 155,818

2 Door Convertible Coupe, 6 Passenger, Model 46C, Body #55-4467

Base Price: $2,590; Shipping Weight: 3,825 Pounds; Production Total: 10,009

4 Door Station Wagon, 6 Passenger, Model 49, Body #55-4481

Base Price: $2,974; Shipping Weight: 3,940 Pounds; Production Total: 2,952

Total Series Production: 381,249.

Buick Super, Series 50, 8 Cylinder

Body Data & Pricing:

4 Door Sedan, 6 Passenger, Model 52, Body #55-4569

Base Price: $2,875; Shipping Weight: 4,140 Pounds; Production Total: 43,280

2 Door Hardtop Coupe, 6 Passenger, Model 56R, Body #55-4537

Base Price: $2,831; Shipping Weight: 4,075 Pounds; Production Total: 85,656

2 Door Convertible Coupe, 6 Passenger, Model 56C, Body #55-4567X

Base Price: $3,225; Shipping Weight: 4,280 Pounds; Production Total: 3,527

Total Series Production: 132,463.

Buick Century, Series 60, 8 Cylinder:

Body Data & Pricing:

4 Door Sedan, 6 Passenger, Model 61, Body #55-4669

Base Price: $2,548; Shipping Weight: 3,825 Pounds; Production Total: 13,629

4 Door Hardtop, 6 Passenger, Model 63D, Body #55-4639

Base Price: $2,733; Shipping Weight: 3,900 Pounds; Production Total: 55,088

2 Door Hardtop Coupe, 6 Passenger, Model 66R, Body #55-4637

Base Price: $2,601; Shipping Weight: 3,805 Pounds; Production Total: 80,388

2 Door Convertible Coupe, 6 Passenger, Model 66C, Body #55-4667X

Base Price: $2,991; Shipping Weight: 3,950 Pounds; Production Total: 5,588

4 Door Station Wagon, 6 Passenger, Model 69, Body #55-4681

Base Price: $3,175; Shipping Weight: 3,995 Pounds; Production Total: 4,243

2 Door Sedan, 6 Passenger, Model 68, Body #55-4611

Base Price: $2,490; Shipping Weight: 3,765; Production Total: 268

Total Series Production: 159,204.

Buick Roadmaster, Series 70, 8 Cylinder

Body Data & Pricing:

4 Door Sedan, 6 Passenger, Model 72, Body #55-4769

Base Price: $3,349; Shipping Weight: 4,300 Pounds; Production Total: 31,717

2 Door Hardtop, 6 Passenger, Model 76R, Body #55-4737

Base Price: $3,453; Shipping Weight: 4,270 Pounds; Production Total: 28,071

2 Door Convertible Coupe, 6 Passenger, Model 76C, Body #55-4767X

Base Price: $3,552; Shipping Weight: 4,415 Pounds; Production Total: 4,730

Total Series Production: 64,518

All Series: X in Body Style indicates Power Windows

Major Specifications, Buick Special, Model 40:

Wheelbase: 122",

Engine Type: Overhead Valve V-Type 8 Cylinder

Engine Bore & Stroke: 3.625" X 3.2"

Engine Displacement: 264 Cu. In.

Taxable Horsepower: 42.05

Compression Ratio: 8.40:1

Horsepower: 188 @ 4,800 RPM

Torque: 256 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 35 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" X 3.2"

Engine Displacement: 322.0 Cu. In.

Compression Ratio:

Manual Transmission: 8.4:1

Automatic Transmission: 9.0:1

Taxable Horsepower: 51.20

Horsepower:

Manual Transmission: 188 @ 4,800 RPM

Automatic Transmission: 236 @ 4,600 RPM

Torque:

Manual Transmission: 256 Ft. Lbs. @ 2,400 RPM

Automatic Transmission: 330 Ft. Lbs. @ 3,000 RPM

Normal Oil Pressure: 35 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" X 3.2"

Engine Displacement: 322.0 Cu. In.

Compression Ratio:

Manual Transmission: 8.4:1

Automatic Transmission: 9.0:1

Taxable Horsepower: 51.20

Horsepower:

Manual Transmission: 188 @ 4,800 RPM

Automatic Transmission: 236 @ 4,600 RPM

Torque:

Manual Transmission: 250 Ft. Lbs. @ 2,400 RPM

Automatic Transmission: 330 Ft. Lbs. @ 3,000 RPM

Normal Oil Pressure: 35 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" X 3.2"

Engine Displacement: 322.0 Cu. In.

Compression Ratio: 9.0:1

Taxable Horsepower: 51.20

Horsepower: 236 @ 4,600 RPM

Torque: 330 Ft. Lbs. @ 3,000 RPM

Normal Oil Pressure: 35 PSI

Tire Size: 8.00 X 15 Inches

Capacities, Buick Special, Model 40:

Cooling System:

Without Heater: 16-1/2 Quarts; 18-1/2 Quarts with Dynaflow Transmission

With Heater18-1/2 Quarts; 20 Quarts with Dynaflow Transmission

Radiator Cap Pressure: 7 PSI

Fuel Tank: 19 Gallons

Engine Oil: 6 Quarts

Manual Transmission Capacity: 1-3/4 Pints

Dynaflow Transmission Capacity: 10 Quarts

Rear Axle Capacity: 4-1/2 Pints

Capacities, Buick Super, Model 50 & Century, Model 60:

Cooling System:

Without Heater: 16-1/2 Quarts; 18-1/2 Quarts with Dynaflow Transmission

With Heater: 18-1/2 Quarts; 20 Quarts with Dynaflow Transmission

Radiator Cap Pressure: 7 PSI

Fuel Tank: 19 Gallons

Engine Oil: 6 Quarts

Manual Transmission Capacity: 2-1/2 Pints

Dynaflow Transmission Capacity: 10 Quarts

Rear Axle Capacity: 4-1/2 Pints

Capacities, Buick Roadmaster, Model 70

Cooling System:

Without Heater: 18-1/2 Quarts

With Heater: 20 Quarts

Radiator Cap Pressure: 7 PSI

Fuel Tank: 19 Gallons

Engine Oil: 6 Quarts

Transmission Capacity:

Dynaflow: 10 Quarts

Rear Axle Capacity: 4-1/2 Pints

Tune-Up Data, Buick, Special, Series 40:

Ground Polarity: Negative, 12 Volts

Spark Plug Type: AC 44-5, or equivalent

Spark Plug Gap: .032"

Ignition Point Gap: .016"

Distributor Cam Angle: 26-33 Degrees

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

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

Engine Idle Speed: 450 RPM

Cylinder Head Tension: 65-75 Ft Lbs

Compression Pressure @ Cranking Speed: 140 PSI

Tune-Up Data, Buick, Super, Series 50, Century, Series 60, & Roadmaster, Series 70:

Ground Polarity: Negative, 12 Volts

Spark Plug Type: AC 44-5, or equivalent

Spark Plug Gap: .032"

Ignition Point Gap: .016"

Distributor Cam Angle: 26-33 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: 450 RPM

Cylinder Head Tension: 65-75 Ft Lbs

Compression Pressure @ Cranking Speed: 155 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: 42 Degrees ATDC

Minimum Valve Spring Pressure (New Spring):

Inner Spring: 56 Pounds @ 1.15"

Outer Spring: 88 Pounds @ 1.12"

Valve Lift @ Zero Lash::

Intake: .358"

Exhaust: .350"

Valve Stem Clearance:

Intake: .0025"

Exhaust: .003"

Valve Stem Diameter:

Intake: .3720"

Exhaust: .3714"

Valve Data, Buick Super, Series 50, Century, Series 60:

Tappet Clearance:

Intake: Zero

Exhaust: Zero

Valve Seat Angle: 45 Degrees

Valve Timing:

Intake Valve Opens: 25 Degrees BTDC

Exhaust Valve Closes: 42 Degrees ATDC

Minimum Valve Spring Pressure (New Springs):

Inner Spring: 56 Pounds @ 1.15"

Outer Spring: 88 Pounds @ 1.12"

Valve Lift @ Zero Lash::

Intake: .378"

Exhaust: .350"

Valve Stem Clearance:

Intake: .0025:

Exhaust: .003"

Valve Stem Diameter:

Intake: .3720"

Exhaust: .3714"

Valve Data, Roadmaster, Series 70:

Tappet Clearance:

Intake: Zero

Exhaust: Zero

Valve Seat Angle: 45 Degrees

Valve Timing:

Intake Valve Opens: 25 Degrees BTDC

Exhaust Valve Closes: 42 Degrees ATDC

Minimum Valve Spring Pressure (New Springs):

Inner Spring: 56 Pounds @ 1.15"

Outer Spring: 88 Pounds @ 1.12"

Valve Lift @ Zero Lash::

Intake: .378"

Exhaust: .350"

Valve Stem Clearance:

Intake: .0025:

Exhaust: .003"

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: .940"

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"-.003"

Main Bolt Torque: 100-110 Ft. Lbs.

Delco-Remy Distributor Specifications, All Series:

Distributor # 1110849

Rotation: Clockwise

Cam Angle: 26-33 Degrees

Point Opening: .016"

Condensor Capacity: .18-.23 Mfds

Breker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 375 RPM

Full Advance: 12 Degrees @ 1,750 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 # 1102008

Direction of Rotation: Clockwise

Ground Polarity: Negative

Generator Output: 30 Amperes @ 2,150 RPM

Brush Spring Tension 28 Ounces

Field Current: 1.48 to 1.62 Amperes

Regulator #: 1118825

Cutout Relay:

Voltage to Close Points: 12.6 Volts

Armature Air Gap: .020"

Voltage Regulator Setting: 14.3 Volts

Current Regulator Setting: 30 Amperes

Current & Voltage Armature Air Gap: .075"

Delco-Remy Starting Motor Specifications, All Series:

Starter # 1107621

Rotation: Clockwise

Brush Spring Tension: 35 Ounces

No Load Test: 95 Amperes, 10.1 Volts @ 3,500 RPM

Torque Test: 470 Amperes, 5.4 Volts; Torque: 10.5 Ft Lbs

Rear Axle & Brake Data, All Series:

Ring Gear & Pinion Backlash: .008" to .012"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: None

Axle Shaft End Play: .000" to .008"

Wheel Cylinder Bore:

Front: 1-1/8"

Rear: 1"

Master Cylinder Bore: 1"

Wheel Alignment Data, All Series:

Caster: -1/8 Degrees

Camber: +3/8 Degrees

Toe In: 0 to 1/16"

Toe Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 21-3/4 to 23-1/4 Degrees

Kingpin Inclination: 0 Degrees +7/8 Camber

Stromberg Carburetor Adjustments:

Carburetor Type: AAVB-267

Code #: 7-96

Fuel Level: 21/32"

Float Setting: 5/64"

Fast Idle Setting: #51 Drill

Start Aid Setting: .054" to .061"

Wide Open Kick Setting: .121" to .151"

Choke or Vacuum Kick Setting: #29 Drill

Starting Switch Setting: .110" to .120"

Carburetor Type: WW

Code #: 7-104

Fuel Level: 5/8"

Float Setting: 3/16"

Start Aid Setting: #53 Drill

Wide Open Kick Setting: #27 Drill

Choke or Vacuum Kick Setting: Index

Fast Idle Speed Setting: #48 Drill

Choke Positioning Spring Setting: #21 Drill

Pump Travel Setting: 7/8"

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

Rochester Carburetor Specifications:

Carburetor Type: 4GC

Part #: 7006200, 7009100,

Float Level: 1-35/64"

Float Drop: 2-1/4"

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

Choke Setting: Index

Pump Rod: 1-3/32"

Fast Idle Setting: .024"

Choke Rod: .140"

Choke Unloader: .115"

Secondary Throttle Lockout: .015"

Secondary Throttle Contour Clearance: .030"

Carter Carburetor Specifications:

Carburetor Model #WCD

Carburetor Part # 2179S

Float Level: 15/64"

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

Pump Adjustment Using Gauge T109-117S: 29 Long Stroke

Fast Idle Setting: .025"

Unloader Adjustment: 3/16"

Automatic Choke Setting: Index

Carburetor Model #WCFB

Carburetor Part # 2197S

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

Float Level:

Primary: 3/32"

Secondary: 3/16"

Float Drop:

Primary: 19/32"

Secondary: 11/16"

Pump Adjustment: Outer Hole, Long Stroke

Fast Idle Setting: .018"

Unloader Adjustment: 11/64"

Automatic Choke Setting: Index

Popular Options, All Series:

Sonomatic Radio; Selectronic Radio; Power Antenna; Rear Seat Speaker (except Convertibles & Station Wagons); Electric Clock; License Plate Frames; Vent Shades; Right & Left Outside Mirrors, Glare Proof Inside Mirror; Vanity Visor Mirror; Air Conditioning; Power Windows; 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.

1955 Buick Paint Codes & Colors:

Code Color

AAA Carlsbad Black

BBB Dover White

CCC Cameo Beige

EEE Temple Gray

FFF Colonial Blue

GGG Victoria Blue

HHH Cascade Blue

KKK Stafford Blue

LLL Belfast Green

NNN Galway Green

SSS Cherokee Red

TTT Golf Turquoise

WWW Spruce Green

XXX Nile Green

YYY Mist Green

1955 Buick Historical Data:

1955 Buick Model Year Production: 737,434.

Promotional Model Cars Available:

Metal: 2 Door Hardtop

Plastic: Roadmaster 4 Door Sedan & Century Convertible

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