1968 CADILLAC

Model Designations:

Cadillac Calais, Series 682

Cadillac DeVille, Series 683

Cadillac Fleetwood Sixty-Special, Series 680/681

Fleetwood Eldorado, Series 693

Fleetwood 75, Series 697

Fleetwood 75, Series 698

Cadillac Calais, 8 Cylinder, Body Styles

2 Door Hardtop Coupe, 6 Passenger, Body Code: 68247-G

Base Price: $5,315; Shipping Weight: 4,570 Pounds;

Production Total: 8,165

4 Door Hardtop Sedan, 6 Passenger, Body Code: 68249-N

Base Price: $5,491; Shipping Weight: 4,680 Pounds

Production Total: 10,025

Cadillac Deville, 8 Cylinder, Body Styles:

4 Door Sedan, 6 Passenger, Body Code: 68369-L

Base Price: $5,785; Shipping Weight: 4,680 Pounds;

Production Total: 9,850

4 Door Hardtop Sedan, 6 Passenger; Body Code: 68349-B

Base Price: $5,785; Shipping Weight: 4,675 Pounds

Production Total; 72,662

2 Door Hardtop Coupe DeVille, 6 Passenger, Body Code: 68347-J

Base Price: $5,552; Shipping Weight: 4,595 Pounds

Production Total: 63,935

2 Door Convertible Coupe, 6 Passenger, Body Code: 68367-F

Base Price: $5,736; Shipping Weight: 4,600 Pounds;

Production Total: 18,025

Cadillac Fleetwood, Sixty-Special, Series 680, 8 Cylinder, Body Styles

4 Door Sedan, 6 Passenger, Body Code: 68069-M

Base Price: $6,583; Shipping Weight: 4,795 Pounds

Production Total: 3,300

Cadillac Fleetwood, Sixty-Special, Series 681, 8 Cylinder, Body Styles

4 Door Brougham, 6 Passenger, Body Code: 68169-P

Base Price: $6,899; Shipping Weight: 4,805 Pounds

Production Total: 15,300

Fleetwood Eldorado, 8 Cylinder, Body Styles:

2 Door Eldorado Hardtop Coupe, 6 Passenger, Body Code: 69347-H

Base Price: $6,605; Shipping Weight: 4,580 Pounds

Production Total: 24,528

Cadillac Fleetwood 75, 8 Cylinder, Body Styles

4 Door Sedan, 9 Passenger, Body Code: 69723-R

Base Price: $10,629; Shipping Weight: 5,300 Pounds;

Production Total: 805

4 Door Limousine, 9 Passenger, Body Code: 69733-S

Base Price: $10,768; Shipping Weight: 5,385 Pounds;

Production Total: 995

Cadillac Fleetwood 75, (Chassis) 8 Cylinder, Body Styles

Commercial Chassis: Body Code: 69890-Z

Production Total: 2,413

General Specifications, All Series:

Wheelbase:

Series 60S: 133.0"

Calais & DeVille: 129.5"

Series 75: 149.8"

Eldorado: 120"

Commercial Chasis: 156"

Tire Sizes:

Series 75: 8.20 X 15"

All Others: 9.00 X 15"

Axle Ratio:

Standard, all except Eldorado & 75 Series: 2.94:1

Standard on Eldorado & 75 Series, Optional on others: 3.21:1

Engine Specifications:

Engine Type: Overhead Valve, V-8

Bore & Stroke: 4.300" X 4.060"

Engine Displacement: 472 Cu. In.

Compresssion Ratio: 10.50 to 1

Taxable Horsepower: 59.17

Horsepower: 375 @ 4,400 RPM

Torque: 525 Ft. Lbs. @ 3,000 RPM

Normal Oil Pressure: 30-35 PSI

Carburetor: 4 Barrel

Capacities, Series:

All Series, Except Eldorado & Series 75:

Cooling System:

With Heater: 20.3 Quarts

With Air Conditioning: 20.8 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thrermostat Opening: 195 Degrees

Fuel Tank: 26 Gallons;

Engine Oil Refill: 4 Quarts*

Hydramatic Transmission:

Oil Pan: 2 Quarts

Total Capacity: 12-1/2 Quarts

Rear Axle: 5 Pints

* Add 1 Quart for Filter

Series 75:

Cooling System:

With Heater: 23.8 Quarts

With Air Conditioning: 23.8 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thrermostat Opening: 195 Degrees

Fuel Tank: 20 Gallons;

Engine Oil Refill: 4 Quarts*

Hydramatic Transmission:

Oil Pan: 2 Quarts

Total Capacity: 12-1/2 Quarts

Rear Axle: 5 Pints

* Add 1 Quart for Filter

Eldorado:

Cooling System:

With Heater: 20.3 Quarts

With Air Conditioning: 20.8 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thrermostat Opening: 195 Degrees

Fuel Tank: 24 Gallons;

Engine Oil Refill: 5 Quarts*

Hydramatic Transmission:

Oil Pan: 5 Quarts

Total Capacity: 13 Quarts

Front Axle: 4-1/2 Pints

* Add 1 Quart for Filter

Tune Up Specifications, 8 Cylinder:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug Type: AC 44N

Spark Plug: Gap .035;

Point Gap: Turn Adjusting screw in until engine begins to misfire, then back screw off 1/2 turn.

Distributor Cam Angle: 30 degrees

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

Ignition Timing: 5 Degrees BTDC on Damper

Engine Idle Speed: 550 RPM (In Drive) (A/C Off)

Minimum Compression Pressure @ Cranking Speed: 175 PSI (Minimum)

Fuel Pump Pressure: 5-1/4 to 6-1/2 PSI

Valve Specifications, 8 Cylinder:

Valve Lash: Hydralic

Valve Angles:

Seat: 45 Degrees

Face: 44 Degrees

Valve Spring Height: 1-15/16"

Valve Spring Pressure: 160 Lbs @ 1.5 inches

Valve Stem Clearance: Intake .0005"-.0025"

Exhaust .001"-.0025"

Valve Stem Diameter:

Intake: .3415"-.3425"

Exhaust: .3415"-.3420"

Pistons, Pins, Rings, Crankshaft & Bearings Data, 8 Cylinder:

Piston Rings:

Ring End Gap:

Compression: .013"

Oil: .013"

Wrist Pin Diameter: .9995"

Rod Bearings:

Shaft Diameter: 2.500"

Rod Bearing Clearance: .0005.-0028"

Main Bearings:

Shaft Diameter: 3.250"

Main Bearing Clearance: .0003"-.0026"

Thrusk on Bearing #3

Crankshaft End Play: .002"-.012"

Engine Tightening Specifications:

Spark Plugs: 25 Ft. Lbs.

Cylinder Head Bolts: 115 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 35 Ft. Lbs.

Rocker Arm Cover: 24 Inch Lbs.

Connecting Rod Cap Bolts: 40 Ft. Lbs.

Main Bearing Cap Bolts: 90 Ft. Lbs.

Flex Plate to Crankshaft: 75 Ft. Lbs.

Vibration Damper or Pulley: Pulley to Damper Screws: 17 Ft. Lbs.

Brake Specifications, All Except Series 75 & Eldorado:

Brake Drum Diameter: 12.000"

Wheel Cylinder Bore:

Front Disc Brakes: 2-3/4"

Front Drum Brakes: 1-3/16"

Rear, with Front Disc Brakes: 13/16"

Rear, with Front Drum Brakes: 15/16"

Master Cylinder Bore:

Disc Brakes: 1"

Drum Brakes: 1"

Note: Power Brakes are Standard Equipment

Brake Specifications, Eldorado:

Brake Drum Diameter: 11.000"

Wheel Cylinder Bore:

Disk Brakes: 1-15/16"

Front Drum Brakes: 1-1/8"

Rear, with Front Disc Brakes: 13/16"

Rear, with Front Drum Brakes: 7/8"

Master Cylinder Bore:

Disk Brakes: 1"

Drum Brakes: 1"

Note: Power Brakes are Standard Equipment

Brake Specifications, Series 75:

Brake Drum Diameter: 12.000"

Wheel Cylinder Bore:

Front Disc Brakes: 2-3/4"

Front Drum Brakes: 1-3/16"

Rear, with Front Drum Brakes: 15/16"

Rear, with Front Disc Brakes: 7/8"

Master Cylinder Bore:

Disc Brakes: 1"

Drum Brakes: 1"

Note: Power Brakes are Standard Equipment

Wheel Alignment Specifications, All Series Except Eldorado:

Caster: - 1 Degree

Camber:

Left: Zero Degrees

Right: - 1/4 Degrees

Toe In: 3/16"-1/4"

Toe-Out on Turns:

Outer Wheel: 18-1/6 Degrees

Inner Wheel: 20 Degrees

Wheel Alignment Specifications, Eldorado:

Caster: Zero Degrees

Camber:

Left: Zero Degrees

Right: Zero Degrees

Toe In: 0-1/8"

Toe-Out on Turns:

Outer Wheel: 18-1/6 Degrees

Inner Wheel: 20 Degrees

Alternator Specifications:

Model: 1100694

Rated Hot Output: 55 Amperes

Field Current, 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Output @ 14 Volts:

2,000 RPM: 32 Amperes

5,000 RPM: 50 Amperes

Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 2.3 to 3.7 Volts

Voltage Regulator:

Air Gap: .060"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.4 Volts

Model: 1100696

Rated Hot Output: 42 Amperes

Field Current, 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Output @ 14 Volts:

2,000 RPM: 28 Amperes

5,000 RPM: 40 Amperes

Regulator #11195125

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 2.3 to 3.7 Volts

Voltage Regulator:

Air Gap: .060"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.4 Volts

Model: 1100742

Rated Hot Output: 63 Amperes

Field Current, 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Output @ 14 Volts:

2,000 RPM: 35 Amperes

5,000 RPM: 59 Amperes

Regulator #1119519

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 2.7 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.3 Volts

Distributor Specifications:

Distributor #1111239

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

Cam Angle: 30 Degrees

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 400 RPM

Full Advance: 13 Degrees @ 2,000 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 8 to 10 Inches

Maximum Vacuum Advance: 12 Degrees @ 13" Vacuum

Starting Motor Data:

Eldorado:

Starter # 1108352

Brush Spring Tension: 35 Ounces

No Load Test: 70-99 Amperes, 10.6 Volts, @ 7,800-12.000 RPM

Torque Test: 435-535 Amperes, 3.0 Volts

All Except Eldorado:

Starter # 1108381

Brush Spring Tension: 35 Ounces

No Load Test: 70-99 Amperes, 10.6 Volts, @ 7,800-12,000 RPM

Torque Test: 435-455 Amperes, 3.0 Volts

Carter Carburetor Data:

Rochester Carburetor Adjustments:

Carburetor Model: 4MC & 4MV

Part #7028230, 7028231

Float Level: 1/4"

Pump Rod:

Hole: Outer

Adjustment: 11/32"

Fast Idle, Bench Adjustment: 1-1/2 Turns

Choke Rod: .090"

Vacuum Break: .180"

Air Valve Dashpot: .030"

Choke Unloader: .300"

Air Valve Lockout: .030"

Secondary Metering Rods: 55/64"

Air Valve Valve Spring Wind-Up: 1/2"

Part #7028234, 7028235

Float Level: 11/32"

Pump Rod:

Hole: Outer

Adjustment: 11/32"

Fast Idle, Bench Adjustment: 1-1/2 Turns

Choke Rod: .090"

Vacuum Break: .180"

Air Valve Dashpot: .030"

Choke Unloader: .300"

Air Valve Lockout: .030"

Secondary Metering Rods: 55/64"

Air Valve Valve Spring Wind-Up: 7/16"

Part #7028236, 7028237

Float Level: 1/4"

Pump Rod:

Hole: Outer

Adjustment: 11/32"

Fast Idle, Bench Adjustment: 1-1/2 Turns

Choke Rod: .090"

Vacuum Break: .215"

Air Valve Dashpot: .030"

Choke Unloader: .300"

Air Valve Lockout: .030"

Secondary Metering Rods: 55/64"

Air Valve Valve Spring Wind-Up: 1/2"

Part #7028238, 7028239

Float Level: 11/32"

Pump Rod:

Hole: Outer

Adjustment: 11/32"

Fast Idle, Bench Adjustment: 1-1/2 Turns

Choke Rod: .090"

Vacuum Break: .215"

Air Valve Dashpot: .030"

Choke Unloader: .300"

Air Valve Lockout: .030"

Secondary Metering Rods: 55/64"

Air Valve Valve Spring Wind-Up: 7/16"

Popular Options:

Automatic Climate Control; Automatic Level Control; Controlled Differential; Cruise Control; Door Edge Guards; Tinted Glass; License Plate Frame; Power Seats; Seat Warmer; Leather Upholstery; Reclining Seat with Headrests; Bucket Seats on Eldorado; Power Door Locks; Power Headlight Control; Power Windows; Power Vent Windows; Rear Defogger; Front Disc Brakes on Eldorado; Radio with Rear Speaker; Radio with Rear Speaker & Remote Control; AM-FM Radio; Adjustable Steering Wheel; Remote Trunk Lock; Twilight Sentinal; White Sidewall Tires; Twin Front & Rear Mats.

1968 Cadillac Historical Data:

The 1968 Cadillac model year introduction was on September 21, 1967.

Total 1968 Cadillac Production was 230,003.

Paint Colors & Codes:

Code Color Name

10 Sable Black

12 Grecian White

16 Regal Silver

18 Summit Gray

20 Arctic Blue

24 Normandy Blue

26 Emperor Blue

28 Carbide Aqua

30 Silverpine Green

36 Ivanhoe Green

40 Kashmir Ivory

42 Sudan Beige

43 Baroque Gold

44 Chestnut Brown

48 San Mateo Red

49 Regent Maroon

90 Spectre Blue Firemist

94 Topaz Gold Firemist

96 Monterey Green Firemist

97 Rosewood Firemist

98 Madeira Plum Firemist

Promotional Model Cars:

Plastic: Eldorado 2 Door Hardtop; Cadillac Coupe DeVille Hardtop; Cadillac Convertible

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