1955 OLDSMOBILE

Model Designations:

Oldsmobile 88, 8 Cylinder, Model 88

Oldsmobile Super 88, 8 Cylinder, Model S-88

Oldsmobile 98, 8 Cylinder, Model 98

Oldsmobile 88,Body Styles:

2 Door Sedan, 5 Passenger, Body # 55-3611

Base Price: $2,297; Shipping Weight: 3,590

Production Total: 37,507

2 Door Hardtop Holiday Coupe, 5 Passenger, Body # 55-3637

Base Price: $2,474; Shipping Weight: 3,705

Production Total: 85,767

4 Door Sedan, 5 Passenger, Body # 55-3669

Base Price: $2,362; Shipping Weight: 3,710 Pounds

Production Total: 55,777

Oldsmobile Super 88, Body Styles:

2 Door Sedan, 5 Passenger, Body # 55-3611D

Base Price: $2,436; Shipping Weight: 3,755 Pounds

Production Total: 11,950

2 Door Hardtop Holiday Coupe, 5 Passenger, Body # 55-3637D

Base Price: $2,714; Shipping Weight: 3,765 Pounds

Production Total: 62,534

2 Door Convertible, 5 Passenger, Body # 55-3667DTX

Base Price: $2,894; Shipping Weight: 3,795 Pounds

Production Total: 9,007

4 Door Sedan, 5 Passenger, Body # 55-3669D

Base Price: $2,503; Shipping Weight: 3,760 Pounds

Production Total: 111,316

Oldsmobile 98, Body Styles:

2 Door Hardtop Holiday Coupe, 5 Passenger, Body # 55-3037

Base Price: $3,069; Shipping Weight: 3,809 Pounds

Production Total: 38,363

4 Door Sedan, 5 Passenger, Body # 55-3069D

Base Price: $2,833; Shipping Weight: 3,865

Production Total: 39,847

2 Door Starfire Convertible, 5 Passenger, Body # 55-3067DX

Base Price: $3,276; Shipping Weight: 3,890 Pounds

Production Total: 9,149

Chassis:

Wheelbase:

DeLuxe & Super Eighty-Eight: 122"

Ninety-Eight: 126"

Tire Sizes:

All Series: 7.60 X 15"

Rear Axle Ratios:

Information Not Available

General Engine Specifications:

Oldsmobile, Series DeLuxe 88:

Engine Type: Overhead Valve V-8

Bore & Stroke: 3-7/8" X 3-7/16"

Engine Displacement: 324.31 Cu. In.

Compresssion Ratio: 8.50 to 1

Taxable Horsepower: 48.05

Horsepower: 185 @ 4,000 RPM

Torque: 320 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 35-45 PSI

Oldsmobile, Series Super 88 & 98:

Engine Type: Overhead Valve V-8

Bore & Stroke: 3-7/8" X 3-7/16"

Engine Displacement: 324.31 Cu. In.

Compresssion Ratio: 8.50 to 1

Taxable Horsepower: 48.05

Horsepower: 202 @ 4,000 RPM

Torque: 332 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 35-45 PSI

Capacities:

All Series:

Cooling System:

Without Heater: 20-1/2 Quarts

With Heater: 21-1/2 Quarts

Radiator Cap Pressure: 7 PSI

Fuel Tank: 20 Gallons

Engine Oil Refill: 5 Quarts*

Manual Transmission: 2-1/2 Pints

Hydra-Matic Transmission: 11 Quarts

Rear Axle: 4-3/4 Pints

* Add 1 Quart for Oil Filter

Tune Up Specifications:

All Series:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug Type: AC 44-5

Spark Plug: Gap .030"

Point Gap: .016"

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

Ignition Timing: Slot on Pulley

Engine Idle Speed: 400 RPM (In Drive for Automatic Transmission)

Cylinder Head Torque: 65-70 Ft Lbs

Compression Pressure @ Cranking Speed: 120 PSI (Minimum)

Valve Specifications:

All Series:

Running Clearance:

Intake Zero

Exhaust Zero

Valve Seat Angle: 45 Degrees,

Valve Timing: Intake Opens 14 Degrees Before Top Dead Center

Exhaust Closes 14 degrees After Top Dead Center

Valve Spring Pressure: 156 Lbs @ 1-1/2 inches

Valve Lift, Zero Lash:

Intake: .403"

Exhaust: .403"

Valve Stem Clearance:

Intake .0022"-.0042"

Exhaust .0027"-.0045"

Valve Stem Diameter:

Intake: .3417"-.3425"

Exhaust: .3930"-.3938"

Pistons, Rings, Wristpins, Crankshaft & Bearings Data:

All Series:

Piston Removal: From Above

Fitting Pistons:

Shim Thickness: .0015"

Pounds Pull on Scale: 10 to 18

Ring End Gap:

Compression Ring: .010"

Oil Ring: .010"

Wristpin Diameter: .9805"

Rod Bearings:

Shaft Diameter: 2.249"-2.250"

Rod Bearing Clearance: .001"-.003"

Rod End Play: .002"-.011"

Rod Bolt Torque: 45-50 Ft. Lbs.

Main Bearings:

Shaft Diameter:

Rear Bearing: 2.623"-2.624"

Other Bearings: 2.498"-2.499"

Main Bearing Clearance:

Front: .0005"-.002"

Rear: .002"-.0035"

Others: .0005"-.003"

Crankshaft End Play: .004"-.008"

Thrust on Rear Bearing

Main Bolt Torque:

Rear: 140 Ft. Lbs

Others: 100 Ft. Lbs

Delco-Remy Distributor Specifications:

All Series:

Distributor #1110850

Rotation: Counter-Clockwise

Cam Angle: 26-33 Degrees

Breaker Point Opening: .016"

Condenser Capacity: .18 -.23 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 400 RPM

Full Advance: 14 Degrees @ 1,725 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 4-1/2" to 6-1/2"

Inches of Vacuum for Full Plunger Travel: 15" to 16"

Maximum Vacuum Advance: 10 Degrees

Delco-Remy Generator & Regulator Specifications:

Generator #1102003

Generator Output: 30 Amperes @ 2,150 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 1.48 to 1.62 Amperes

Regulator #1118825

Cutout Relay:

Voltage to Close Points: 12.6

Armature Air Gap: .020"

Voltage Regulator Setting: 14.3 Volts

Current Regulator Setting: 30 Amperes

Current & Voltage Armature Air Gap: .075"

Ground Polarity: Negative

Delco-Remy Starting Motor Specifications:

Part #1107623

Rotation: Clockwise

Brush Spring Tension: 35 Ounces (Minimum)

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

Lock Test: 470 Amperes, 5.4 Volts, 10-1/2 Ft. Lbs. of Torque.

Rear Axle & Brake Specifications:

Ring Gear & Pinion Backlash: .004"-.006"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: Spacer

Wheel Cylinder Bore:

Front: 1-3/32"

Rear: 31/32"

Master Cylinder Bore: 1"

Wheel Alignment Specifications:

All Series:

Caster: - 3/8 Degrees

Camber: 0 Degrees

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

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 22-1/2 to 23-1/2 Degrees

Kingpin Angle: 6 Degrees

Carter Carburetor Specifications:

Carburetor Model: WCFB

Part #2246S

Idle Screw Turns to Open: 1 to 2 Turns

Float Level:

Primary: 3/16"

Secondary: 3/16"

Float Drop:

Primary: 11/16"

Secondary: 11/16"

Fast Idle Adjustment: .015"

Unloader: 3/16"

Bowl Vapor Vent: 1/16"

Automatic Choke Setting: Index

Rochester 4GC Carburetor Specifications:

Carburetor #7006000

Float Level: 1-5/8"

Float Drop: 2-1/4"

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

Choke Setting: 1 Lean

Pump Rod: 1-1/16"

Fast Idle Setting: .024"

Choke Rod: .052"

Choke Unloader: .115"

Secondary Throttle Lockout: .015"

Secondary Throttle Coutour Clearance: .030"

Idle Air Vent: .063"

Carburetor #7007000

Float Level: 1-5/8"

Float Drop: 2-1/4"

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

Choke Setting: Index

Pump Rod: 1-1/16"

Fast Idle Setting: .024"

Choke Rod: .052"

Choke Unloader: .115"

Secondary Throttle Lockout: .015"

Secondary Throttle Coutour Clearance: .030"

Idle Air Vent: .063"

Rochester 2GC Carburetor Specifications:

Carburetor #7006970

Float Level: 1-9/32"

Float Drop: 1-29/32"

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

Choke Setting: Index

Pump Rod: 15/16"

Fast Idle Setting: .020"

Choke Rod: .040"

Choke Unloader: 9/64"

Idle Air Vent: .020"

1955 Oldsmobile Paint Colors & Codes:

Code Color

10 Black

20 Burlingame Red

21 Regal Maroon

30 Mint Green

31 Glen Green

32 Grove Green

40 Twilight Blue

41 Panama Blue

42 Binimi Blue

43 Frost Blue

50 Mist Gray

51 Juneau Gray

60 Turquoise

61 Caspian Cream

62 Coral

63 Bronze Metallic

64 Chartreuse

65 Shell Beige

70 Turquoise

Popular Options:

DeLuxe Radio, Super DeLuxe Radio, Rear Seat Speaker, Power Antenna, DeLuxe Heater & Defroster, Air Conditioning, Power Steering, Power Brakes, Power Windows, 4 Way Power Seat, 2 Way Power Seat, DeLuxe Steering Wheel & Horn Ring, Back Up Lights, Windshield Washer, Tinted Glass, Courtesy Lights, Outside Visor, Padded Dash, Whitewall Tires, Autronic Light Headlight Dimmer, Stainless Steel Wheel Trim Rings, DeLuxe Wheel Discs, Wire Wheel Covers, Exhaust Extension, Vanity Visor Mirror, Trunk Light, Underhood Light, Glove Compartment Light, Parking Brake Signal Light, Spot Light, Heavy Duty Air Cleaner, Oil Filter, Automatic Transmission.

1955 Oldsmobile Historical Data:

Total 1955 Oldsmobile Production was 463,217.

Promotional Model Cars:

Metal: 2 Door Hardtop

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