1955 PONTIAC

Model Designations:

Pontiac Chieftain, Series 27, 8 Cylinder

Star Chief, Series 28, 8 Cylinder

Pontiac Chieftain, Series 27, 8 Cylinder, Body Styles:

Special, 860:

4 Door Sedan, 6 Passenger, Body Style # 2519

Base Price: $2,164; Shipping Weight: 3,621 Pounds

Total Production: 65,155

2 Door Sedan, 6 Passenger, Body Style # 2511

Base Price: $2,105; Shipping Weight: 3,586 Pounds

Total Production: 58,654

4 Door Station Wagon, 6 Passenger, Body Style #2562

Base Price: $2,518; Shipping Weight: 3,736 Pounds

Total Production: 6,091

2 Door Station Wagon, 6 Passenger, Body Style #2563F

Base Price: $2,434; Shipping Weight: 3,736 Pounds

Total Production: 8,618

DeLuxe 870:

4 Door Sedan, 6 Passenger, Body Style # 2569D

Base Price: $2,268; Shipping Weight: 3,621 Pounds

Total Production: 91,187

2 Door Sedan, 6 Passenger, Body Style # 2511D

Base Price: $2,209; Shipping Weight: 3,586 Pounds

Total Production: 28,950

2 Door Hardtop Catalina Coupe, 6 Passenger, Body Style # 2537D

Base Price: $2,335; Shipping Weight: 3,631 Pounds]

Total Production: 72,608

4 Door Station Wagon, 6 Passenger, Body Style #2563DF

Base Price: $2,603; Shipping Weight: 3,786 Pounds

Total Production: 19,439

Pontiac Chieftain Star Chief Eight, Series 28, 8 Cylinder, Body Styles:

Star Chief DeLuxe:

4 Door Sedan, 6 Passenger, Body Style # 2819D

Base Price: $2,362; Shipping Weight: 3,666 Pounds

Total Production: 44,800

2 Door Convertible, 6 Passenger, Body Style # 2867DTX

Base Price: $2,691; Shipping Weight: 3,901 Pounds

Total Production: 19,762

Star Chief Custom:

4 Door Sedan, 6 Passenger, Body Style # 2819SD

Base Price: $2,455; Shipping Weight: 3,666 Pounds

Total Production: 35,153

2 Door Catalina Hardtop, 6 Passenger, Body Style # 2837SD

Base Price: $2,499; Shipping Weight: 3,676 Pounds

Total Production: 99,929

2 Door Safari Station Wagon, 6 Passenger, Body Style #2764DF*

Base Price: $2,962; Shipping Weight: 3,746 Pounds

Total Production: 3,760

* Built on 122" Wheelbase.

Chassis:

Wheelbase:

Chieftain: 122"

Star Chief: 124"

Safari Wagon: 122"

Tire Size:

Passenger Cars: 7.10 X 15"

Station Wagons: 7.60 X 15"

Rear Axle Ratios:

Information Not Available

General Engine Specifications:

Pontiac, 8 Cylinder:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 3-3/4" X 3-1/4"

Engine Displacement: 287.2 Cu. In.

Compresssion Ratio: 8.00 to 1

Taxable Horsepower: 45.0

Horsepower: 180 @ 4,600 RPM

Torque: 264 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 40 PSI

Capacities:

Cooling System:

Without Heater: 22-3/4 Quarts

With Heater: 24-1/2 Quarts

Fuel Tank: 20 Gallons

Engine Oil Refill: 5 Quarts*

Manual Transmission: 1-3/4 Pints

Hydra-Matic Transmission: 9-1/2 Quarts

Rear Axle: 3-1/4 Pints

* Add 1 Quart for Oil Filter

Tune Up Specifications:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug Type: AC 44-5

Spark Plug: Gap .035"

Point Gap: .016"

Distributor Cam Angle: 26-33 Degrees

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

Ignition Timing: Vibration Damper, First Line to come under pointer with engine cranking.

Engine Idle Speed: 450-475 RPM

Cylinder Head Torque: 95 Ft Lbs

Compression Pressure @ Cranking Speed: 120 PSI (Minimum)

Valve Specifications:

Operating Clearance, Running Hot:

Intake: Zero

Exhaust: Zero

Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees

Valve Timing:

Intake Opens 22 Degrees Before Top Dead Center

Exhaust Closes 27 degrees After Top Dead Center

Valve Spring Pressure:

Inner Spring: 57 Lbs @ 1-3/32"

Outer Spring: 102 Lbs @ 1.20"

Valve Lift, Zero Lash:

Intake: .327"

Exhaust: .327"

Valve Stem Clearance:

Intake .0015"

Exhaust .0015"

Valve Stem Diameter:

Intake: .340"

Exhaust: .340"

Pistons, Rings, Wrist Pin, Crankshaft, & Bearing Data:

Piston Removal: From Above

Fitting Pistons:

Shim Thickness: .0015"

Pounds Pull on Scale: 8 to 15

Ring End Gap:

Compression Ring:

Top Ring: .010"

Second Ring: .008"

Oil Ring: .015"

Wristpin Diameter: .9805"

Rod Bearings:

Shaft Diameter: 2.2488"-2.2498"

Rod Bearing Clearance: .001"-.003"

Rod End Play: .006"-.011"

Rod Bolt Torque: 45 Ft. Lbs.

Main Bearings:

Shaft Diameter: 2.498"-2.499"

Main Bearing Clearance:

Front: .0005"-.0025"

Rear: .0008"-.0033:

Others: .0005"-.003"

Crankshaft End Play: .003"-.008"

Thrust on #4 Bearing

Main Bolt Torque: 95 Ft. Lbs; (120 Ft. Lbs on Rear Cap)

Delco-Remy Distributor Specifications:

Distributor #1110828

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 @ 325 RPM

Full Advance: 15 Degrees @ 1,700 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 4" to 6"

Inches of Vacuum for Full Plunger Travel: 12-1/2" to 13-1/2"

Maximum Vacuum Advance: 8 Degrees

Delco-Remy Generator & Regulator Specifications:

Generator #1100304

Generator Output: 25 Amperes @ 2,780 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 1.5-1.62 Amperes

Regulator #1118945

Cutout Relay:

Voltage to Close Points: 12.6

Armature Air Gap: .020"

Voltage Regulator Setting: 14.3 Volts

Current Regulator Setting: 25 Amperes

Current & Voltage Armature Air Gap: .075"

Ground Polarity: Negative

Delco-Remy Starting Motor Specifications:

Models without Power Steering:

Part #1107631

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.

Models without Power Steering:

Part #1107632

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, 10.5 Ft. Lbs. of Torque.

Rear Axle & Brake Specifications:

Ring Gear & Pinion Backlash: .003"-.012"

Drive Pinion Adjustment: Shim

Drive Pinion Bearing Adjustment: Spacer

Axle Shaft End Play: None

Wheel Cylinder Bore:

Front: 1-1/16"

Rear: 15/16"

Master Cylinder Bore: 1"

Wheel Alignment Specifications:

Caster: - 1 Degrees

Camber: + 1/2 Degrees

Toe In; 0 to 1/16"

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 22-1/2 Degrees

Kingpin Angle: 1-1/3 Degrees @ 0 Degree Camber

Carter Carburetor Specifications:

Carburetor Model: WGD

Part #2182

Float Level: 7/32"

Idle Screw Setting: 1-1/4 to 2-1/4 Turns

Fast Idle Throttle Clearance: .026"

Unloader Setting: 5/32"

Automatic Choke Setting: 1 Rich

Carburetor Model: WGD

Part #2182

Float Level: 7/32"

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

Fast Idle Throttle Clearance: .026"

Unloader Setting: 5/32"

Automatic Choke Setting: 1 Lean

Carburetor Model: WCFB

Part #2268S, 2283S

Idle Screw Setting: 3/4 to 1-3/4 Turns

Float Level:

Primary: 3/16"

Secondary: 3/16"

Float Drop:

Primary: 11/16"

Secondary: 11/16"

Fast Idle Setting: .018"

Unloader Setting: 1/8"

Secondary Throttle Lever: .017"-.022"

Automatic Choke Setting: Index

Rochester Carburetor Specifications:

Model: 2GC

Part #7006100

Float Level: 1-15/64"

Float Drop: 1-29/32"

Idle Screw Setting: 1-1/2 Turns Open

Choke Setting: Index

Pump Rod: 15/16"

Choke Rod: .063"

Choke Unloader: .063"

Model: 4GC

Part #7007800

Float Level: 1-19/32"

Float Drop: 2-1/4"

Idle Screw Setting: 1-1/2 Turns Open

Choke Setting: Index

Pump Rod: 1-1/64"

Fast Idle: .024"

Choke Rod: .052"

Choke Unloader: .115"

Secondary Throttle Lockout: .015"

Secondary Throttle Contour Clearance: .015"

Popular Options:

Power Steering, Power Brakes, Air Conditioning, Power Windows, Underseat Heter & Defroster, 7 Tube Radio, Rear Seat Speaker, Turn Signals, Autronic Eye Headlight Dimmer, Back-Up Lights, Non-Glare Mirror, Fender Skirts, Exhaust Deflector, Fuel Door Guard, Door Edge Guards, Door Handle Guards, Padded Dash, Di-Noc Wood Grain Trim for Station Wagons, DeLuxe Steering Wheel for Special, Illuminated Hood Ornament, Outside Suln Visor, Traffic Light Viewer, Windshield Washers, Outside Rear View Mirror, Vanity Visor Mirror, Remote Control Outside Mirror, Glove Compartment Light, Trunk Light, Underhood Light, Ash Tray Light; Courtesy Lights, Parking Brake Signal, Grille Guard, Wing Tip Bumper Guards, Tinted Glass, Fog Lights, Power Antenna, Spot Light, Chrome Wheel Trim Rings, Grille Bug Screen, Saftey Jack, Oil Bath Air Cleaner, Hydra-Matic Transmission, Hydra-Matic Cylinder Head for Manual Transmission.

1955 Pontiac Historical Data:

Introduction of the 1955 Pontiac line was on December 4, 1954.

Total 1955 Pontiac Production was 554,090.

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1955 Pontiac Colors & Codes:

Code Color

5500 Raven Black

5501 Beaumont Blue

5502 Corsair Tan

5503 Persian Maroon

5504 Falcon Gray

5505 Avalon Yellow

5506 Bolero Red

5507 Valley Green

5508 Marietta Blue

5509 Castle Gray

5510 Sequoia Green

5511 Firegold

5512 Turquoise Blue

5531 Nautilus Blue

5541 Driftwood Beige

5582 Polo White

White Mist (Two Tone Only)

Promotional Model Cars Available:

Plastic: Star Chief 2 Door Sedan, Star Chief 4 Door Sedan

Metal: Sedan

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