1951 CADILLAC

Model Designations:

Cadillac Fleetwood 60 Special, Series 51-60, 8 Cylinder

Cadilac, Series 51-61, 8 Cylinder

Cadillac, Series 51-62, 8 Cylinder

Cadillac Fleetwood, Series 51-75, 8 Cylinder

Cadillac Fleetwood, 60 Special, Series 51-60, 8 Cylinder, Body Styles

4 Door Sedan, 6 Passenger, Body Code: 6019

Base Price: $4,142; Shipping Weight: 4,136 Pounds;

Production Total: 18,631

Cadillac, Series 51-61, 8 Cylinder, Body Styles

4 Door Sedan, 5 Passenger, Body Code: 6169

Base Price: $2,917; Shipping Weight: 3,827 Pounds;

Production Total: 2,300

2 Door Club Coupe, 5 Passenger, Body Code: 6137

Base Price: $2,810; Shipping Weight: 3,829 Pounds;

Production Total: 2,400

Cadillac, Series 51-62, 8 Cylinder, Body Styles

4 Door Sedan, 5 Passenger, Body Code: 6219

Base Price: $3,528; Shipping Weight: 4,062 Pound;

Production Total: 54,596

4 Door Sedan (Export), 5 Passenger, Body Code: 6219

Base Price: N/A; Shipping Weight: N/A

Production Total: 756

2 Door Club Coupe, 5 Passenger, Body Code: 6237

Base Price: $3,436; Shipping Weight: 3,993 Pounds;

Production Total: 10,132

Coupe DeVille, 5 Passenger, Body Code: 6237DX

Base Price: $3,843; Shipping Weight: 4,074 Pounds;

Production Total: 10,241

Convertible Coupe, 5 Passenger, Body Code: 6267

Base Price: $3,987; Shipping Weight: 4,316 Pounds;

Production Total: 6,117

Chasis Only: Production Total: 2

Cadillac Fleetwood, Series 51-75, Body Styles

4 Door Sedan, 7 Passenger, Body Code: 7523X

Base Price: $5,200; Shipping Weight: 4,555 Pounds;

Production Total: 1,090

4 Door Imperial Sedan, 7 Passenger, Body Code: 7533X

Base Price: $5,045; Shipping Weight: 4,586 Pounds;

Production Total: 1,085

4 Door Business Sedan, 7 Passenger, Body Code: 7523L

Base Price: NA; Shipping Weight: NA;

Production Total: 30

Commercial Chasis: Body Code: 86;

Production Total: 2,960

General Specifications, All Series:

Wheelbase:

Series 60S: 130"

Series 61: 122"

Series 62: 126"

Series 75: 147"

Tire Sizes:

Series 75: 8.20 X 15"

All Others: 8.00 X 15"

Engine Specifications:

Engine Type: Overhead Valve, V-8

Bore & Stroke: 3-13/16" X 3-5/8"

Engine Displacement: 331.0 Cu. In.

Compresssion Ratio: 7.50 to 1

Taxable Horsepower: 46.50

Horsepower: 160 @ 3,800 RPM

Torque: 312 Ft. Lbs. @ 1,800 RPM

Normal Oil Pressure: 35 PSI

Capacities, Series All Series:

Cooling System: 18 Quarts, Without Heater

19 Quarts, With Heater

Fuel Tank: 20 Gallons;

Engine Oil Refill: 5 Quarts;

Manual Transmission: 2-1/2 Pints

Hydramatic Transmission: 12 Quarts, Use Hydra-Matic Fluid Only

Rear Axle: 5 Pints

Tune Up Specifications, 8 Cylinder:

Spark Plug Type: AC 48X.

Spark Plug: Gap .035;

Point Gap: .016

Distributor Cam Angle: 28-34 degrees

Ignition Timing: "A" Mark on Viabration Damper

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

Engine Idle Speed:

Manual Transmission: 375 RPM

Automatic Transmission: 375 RPM (In Drive)

Tappet Clearance, Hot: Intake Zero", Exhaust Zero"

Cylinder Head Torque: 65-70 Ft Lbs

Minimum Compression Pressure @ Cranking Speed: 120 PSI (Minimum)

Valve Specifications, 8 Cylinder:

Tappet Clearance, Running Hot:

Intake Zero";

Exhaust Zero"

Clearance for Timing: Zero

Valve Seat Angle: 44 degrees

Valve Timing: Intake Opens 14 Degrees Before Top Dead Center

Exhaust Closes 24 degrees After Top Dead Center

Valve Spring Pressure: 60 Lbs @ 1-11/16 inches

Valve Stem Clearance: Intake .001"-.0025"

Exhaust .0015"-.0035"

Piston & Ring Data, 8 Cylinder:

Fitting Pistons with Scale:

Piston Removal: From Above

Shim Thickness: .002"

Pounds Pull on Scale: 11

Piston Rings:

Ring Gap (Minimum):

Compression: .010"

Oil: .010"

Fitting Pistons with Spring Scale:

Width of Ring End Gap (Minimum):

Compression Ring: .010"

Oil Ring: .010"

Clearance Between Ring & Grooves:

Compression Ring: .0017"-.0035"

Oil Control Ring: .0015"-.003"

Wrist Pin Diameter: 1.00"

Engine Bearing Data, 8 Cylinder All Series:

Connecting Rod Bearings:

Rod Journal Diameter: 2.2488"-2.2493"

Rod Bearing Clearance: .0005"-.002"

Rod End Play: .008"-.014" inches

Rod Bolt Tension: 40-45 Lbs. Ft.

Main Bearings:

Main Bearing Journal Diameter: 2.4990"-2.4995"

Main Bearing Clearance: .0008" -.0025"

Crankshaft End Play: .001"-.005"

Thrust on Rear Bearing

Main Bolt Tension: 90-100 Lbs. Ft.

Rear Axle & Brake Specifications, All Series, Except Series 75:

Lining Dimensions:

Length:

Rivited Lining: 22-1/2"

Bonded Lining: 19-1/2"

Width: 2-1/2"

Thickness: 3/16"

Brake Shoe Clearance: .010"

Wheel Cylinder Bore:

Front: 1-1/8"

Rear: 1"

Master Cylinder Bore: 1"

Rear Axle & Brake Specifications, Series 75:

Lining Dimensions:

Length:

Front: 25-3/4"

Rear: 25-3/4"

Width: 2-1/2"

Thickness: 3/16"

Brake Shoe Clearance: .010"

Wheel Cylinder Bore:

Front: 1-1/8"

Rear: 1"

Master Cylinder Bore: 1"

Wheel Alignment Specifications, All Series, Except Series 75:

Caster: Zero Degrees

Camber: Zero Degrees

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

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 24-1/2 to 25-1/2 Degrees

Kingpin Angle: 5-5/6 Degrees @ 0 Camber

Wheel Alignment Specifications, Series 75:

Caster: Zero Degrees

Camber: Zero Degrees

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

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 23-1/2 to 24-1/2 Degrees

Kingpin Angle: 5-5/6 Degrees @ 0 Camber

Generator Specifications:

Generator # 1102700

Output: 45 Amperes @ 3,500 RPM

Brush Spring Tension: 25 Ounces

Field Current @ 6 Volts: 1.75-.1.9

Regulator #1118357

Voltage to Close Points, Adjust to 6.4 Volts

Reverse Current to Open Points: 0-3 Amperes

Armature Air Gap: .020"

Voltage Regulator Setting, Adjust to 7.3 Volts

Current Regulator Setting, Adjust to 42 Amperes

Current & Voltage Armature Air Gap: .075"

Generator # 1102700

Output: 50 Amperes @ 3,500 RPM

Brush Spring Tension: 25 Ounces

Field Current @ 6 Volts: 1.75-.1.9

Regulator #1118727

Voltage to Close Points, Adjust to 6.4 Volts

Reverse Current to Open Points: 0-3 Amperes

Armature Air Gap: .020"

Voltage Regulator Setting, Adjust to 7.4 Volts

Current Regulator Setting, Adjust to 47 Amperes

Current & Voltage Armature Air Gap: .075"

Distributor Specifications:

Distributor #1110820

Rotation: Counter-Clockwise

Cam Angle: 28-34 Degrees

Breaker Point Opening: .016"

Condensor Capacity: .18-.23 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 3/4 Degree @ 300 RPM

Full Advance: 16 Degrees @ 1,800 RPM

Vacuum Advance Data:

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

Inches of Vacuum for Full Plunger Travel: 13-15 Inches

Maximum Vacuum Advance: 10 Degrees

Starting Motor Data:

Starter # 1107969

Rotation: Clockwise

Brush Spring Tension: 24-28 Ounces

No Load Test: 60 Amperes, 5.0 Volts, @ 6,000 RPM

Torque Test: 600 Amperes, 3.0 Volts, 15 Ft Lbs of Torque

Carter Carburetor Data:

Carburetor # 845S

Float Level: 11/64"

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

Pump Adjustment, Using Gauge T109-117S: 19

Metering Rod Gauge #: None Needed

Fast Idle Adjustment: .020"

Unloader Adjustment: 5/32"

Automatic Choke Adjustment: 1 Rich

Fuel Pump Pressure:

4 - 5-1/4 PSI

Beginning Engine Numbers:

Engine Numbers are identical with Serial Numbers

Beginning Serial Numbers:

Cadillac, Series 60S: 516000001

Cadillac, Series 61: 516100001

Cadillac, Series 62: 516200001

Cadillac, Series 75; 517500001

Popular Options:

Hydra-Matic Transmission on Series 61 & 75, Radio, Heater, Power Windows, Rear Window Defroster, Spotlight, Fog Lights, Windshield Washer, Chrome Wheel Discs, White Sidewall Tires.

1951 Cadillac Historical Data:

Total 1951 Cadillac Production was 110,340.

During Mid-1951, the Series 61 was discontinued.

Paint Colors & Codes:

Code Color Name

1 Black

2 Empress Blue

3 Exeter Green

4 Capri Green

5 Cadet Blue

6 Tuscon Beige

7 Corinth Blue

8 Savoy Gray

9 Bolero Maroon

10 Mist Gray

12 Chester Green

22 Fiesta Ivory

Argent Gray

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