These are standard specifications for the 1978 Cadillac DeVille, not necessarily specifications for the vehicle(s) in the photo(s).
Transmission:
3 Automatic Turbo-Hydramatic
Chassis # 6D47S8Q289149
View info And history
Information provided by NHTSA
Data updated January 2023
Features
| Engine Location : | Front |
| Drive Type : | Rear Wheel |
| Body / Chassis : | Ladder frame |
| Production Years for Series : | 1977 - 1984 |
| Price : | $10,445-$10,670 |
| Weight : | 4160 lbs | 1886.944 kg |
Engine & Transmission
| V 8 | |
|---|---|
| Displacement : | 6965 cc | 425.0 cu in. | 7.0 L. |
| Power : | 195 HP (143.52 KW) @ 3800 RPM |
| Torque : | 320 Ft-Lbs (434 NM) @ 2400 RPM |
| Bore : | 4.1 in | 104 mm. |
| Stroke : | 4.1 in | 103 mm. |
| Compression : | 8.2:1 |
| Main Bearings : | 5 |
| Construction : | Cast-iron block and head |
| Electronic fuel injection | |
| V 8 | |
|---|---|
| Displacement : | 5735 cc | 350.0 cu in. | 5.7 L. |
| Power : | 120 HP (88.32 KW) @ 3600 RPM |
| Torque : | 220 Ft-Lbs (298 NM) @ 1600 RPM |
| Bore : | 4.1 in | 103 mm. |
| Stroke : | 3.4 in | 86 mm. |
| Compression : | 22.5:1 |
| Main Bearings : | 5 |
| Cylinder Block : | Cast-iron |
| Electronic fuel injection | |
3 Automatic Turbo-Hydramatic
Gear Ratios
| 1st Gear : | 2.48:1 |
| 2nd Gear : | 1.48:1 |
| 3rd Gear : | 1:1 |
Production Figures
| Total Cadillac Production for 1978 : | 349,684 |
| Total 1978 DeVille production : | 206,701 |
| 1978 Cadillac DeVille | |
| Coupe 2 dr. 6 P : | 117,750 |
| Sedan 4 dr. 6 P : | 88,951 |
Dimension(s)
Coupe
Chassis # 6D47S8Q289149
View info And history
| Fuel Capacity : | 25.3 Gal |
| Seating Capacity : | 6 |
| Doors : | 2 |
| Exterior | |
|---|---|
| Length : | 221.2 in | 5619 mm. |
| Width : | 76.5 in | 1943 mm. |
| Height : | 55.3 in | 1405 mm. |
| Wheelbase : | 121.5 in | 3086 mm. |
| Front Track : | 61.7 in | 1567 mm. |
| Rear Track : | 60.7 in | 1542 mm. |
Sedan
| Price : | $10,670 |
| Weight : | 4240 lbs | 1923.232 kg |
| Fuel Capacity : | 25.3 Gal |
| Seating Capacity : | 6 |
| Doors : | 4 |
| Exterior | |
|---|---|
| Length : | 221.2 in | 5619 mm. |
| Width : | 76.5 in | 1943 mm. |
| Height : | 55.3 in | 1405 mm. |
| Wheelbase : | 121.5 in | 3086 mm. |
| Front Track : | 61.7 in | 1567 mm. |
| Rear Track : | 60.7 in | 1542 mm. |
Handling
| Suspension | |
|---|---|
| Four-link drive, coil springs | |
| Steering | |
|---|---|
| Variable Ratio Rack-and-Pinion |
| Tires / Wheels | |
|---|---|
| Tires : | GR78 x 15-B Steel-Belted radial with Wide White Sidewall |
Recall
| Component | WHEELS:LUGS/NUTS/BOLTS |
|---|---|
| Manufacturer | GENERAL MOTORS CORP. |
| NHTSA Campaign ID | 77V200000 |
| Summary | THE REAR WHEEL MOUNTING BOLTS ON THE AFFECTED VEHICLES, ARE BRITTLE AND THEREFORE MAY FRACTURE. THIS BRITTLENESS IS DUE TO IMPROPER HEAT TREATMENT DURING MANUFACTURE. IF THE BOLTS BREAK, THE TIRE AND WHEEL ASSEMBLY MAY SEPARATE FROM THE VEHICLE. |
| Remedy | DEALER WILL INSPECT AND, IF NECESSARY, WILL REPLACE DEFECTIVE BOLTS ON ALL AXLES AND THE TEN REAR AXLE WHEEL MOUNTING BOLTS, FREE OF CHARGE. |
| Notes | VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: SUSPENSION; REAR WHEEL MOUNTING BOLTS.CONSEQUENCES OF DEFECT: IF SEPARATION OCCURS UNDER VEHICLE OPERATION, LOSS OFVEHICLE CONTROL WITHOUT PRIOR WARNING AND AN ACCIDENT COULD RESULT. |
| Component | VISIBILITY:WINDSHIELD WIPER/WASHER |
|---|---|
| Manufacturer | GENERAL MOTORS CORP. |
| NHTSA Campaign ID | 77V162000 |
| Summary | SOME OF THE INVOLVED VEHICLES FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 104, 'WINDSHIELD WIPING AND WASHING SYSTEMS'. THE WINDSHIELD WASHER BOTTLE ON THE INVOLVED VEHICLES MAY CRACK AND ALLOW WASHER FLUID TO DRAIN OUT. |
| Remedy | DEALER WILL INSPECT THE WASHER BOTTLE AND, IF NECESSARY, REPLACE IT WITHOUT CHARGE TO OWNER. |
| Notes | VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: VISUAL; WINDSHIELD WASHER FLUID RESERVOIR.CONSEQUENCES OF DEFECT: THIS CONDITION COULD CREATE A SAFETY HAZARD SINCE AWINDSHIELD OBSCURED BY ROAD SPLASH COULD NOT BE CLEANED WHILE THE CAR IS INMOTION. REDUCED VISIBILITY COULD RESULT AND MAY CONTRIBUTE TO A VEHICLEACCIDENT. |
| Component | UNKNOWN OR OTHER |
|---|---|
| Manufacturer | GENERAL MOTORS CORP. |
| NHTSA Campaign ID | 78V189000 |
| Summary | IF PAPER OR OTHER COMBUSTIBLE MATERIALS ARE PLACED IN THE INSTRUMENT PANEL ASHTRAY RECEPTACLE, THEY COULD BECOME IGNITED AND FLAMES FROM THE FIRE MAY REACH THE INTERIOR OF THE INSTRUMENT PANEL. |
| Remedy | OWNER WILL BE SENT A METAL HEAT SHIELD TO BE INSTALLED ABOVE THE INSTRUMENT PANEL, EITHER BY THE OWNER OR BY THE DEALER. |
| Notes | VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: INTERIOR; INSTRUMENT PANEL.CONSEQUENCES OF DEFECT: THIS COULD CAUSE A VEHICLE FIRE AND PASSENGER INJURIESDUE TO FIRE AND SMOKE INHALATION. |
| Component | VEHICLE SPEED CONTROL:ACCELERATOR PEDAL |
|---|---|
| Manufacturer | GENERAL MOTORS CORP. |
| Mfr Report Date | 19760801 |
| NHTSA Campaign ID | 79V111000 |
| Summary | THE INVOLVED VEHICLES WERE BUILT WITH AN ACCELERATOR PEDAL HAVING AN EXTENSION, OR RUBBER FLAP, AT THE BOTTOM OF THE PEDAL. THIS PEDAL FLAP COULD BE INADVERTENTLY DISPLACED BY A FLOOR COVERING AND WEDGED UNDER THE ACCELERATOR PEDAL IN A MANNER THAT CAN INFLUENCE THE THROTTLE SETTING AND INCREASE THE ENGINE IDLE RPM. |
| Remedy | THE DEALER WILL REMOVE THE RUBBER FLAP FROM THE ACCELERATOR. |
| Notes | VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH CARBURETED ENGINES.SYSTEM: THROTTLE LINKAGES AND CONTROL; PEDAL.CONSEQUENCES OF DEFECT: IF THIS CONDITION WERE TO OCCUR, THE INCREASED ENGINESPEED COULD PRODUCE AN ACCELERATION RATE UNANTICIPATED BY THE OPERATOR. AVEHICLE ACCIDENT COULD RESULT. |
Data updated January 2023
1978 Averages
| Avg. Household Income : | $17,000 |
| Avg. Home : | $54,800 |
| Avg. Gallon of Gas : | $0.63 |
1978 Cadillac DeVille FAQs (show)
Popular frequently asked questions include:
What are the dimension and mechanical specifications of the 1978 Cadillac DeVille?
Q: What is the wheelbase size of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille has a wheelbase size of 121.50 inches.Q: What is the length of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille has a length of 221.20 inches.Q: What is the width of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille has a width of 76.48 inches.Q: How much did the 1978 Cadillac DeVille cost when new?A: The 1978 Cadillac DeVille cost approximately $10,445 to $10,670 (USD) when new.Q: What were the bodystyles of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille was offered as a Coupe, Sedan.Q: What tires did the 1978 Cadillac DeVille have? A: The 1978 Cadillac DeVille had GR78 x 15-B Steel-Belted radial with Wide White Sidewall tires.Q: How many vehicles did Cadillac produce in 1978? A: Cadillac produced 349,684 automobiles in 1978.Q: How many 1978 DeVilles were produced? A: Cadillac produced 206,701 examples of the DeVille in 1978.Q: What engines did the 1978 Cadillac DeVille have? A: The 1978 Cadillac DeVille had the following engine options: V 8 (6965 cc | 425.0 cu in. | 7.0 L.) with 195 HP (143.52 KW) @ 3800 RPM and 320 Ft-Lbs (434 NM) @ 2400 RPM V 8 (5735 cc | 350.0 cu in. | 5.7 L.) with 120 HP (88.32 KW) @ 3600 RPM and 220 Ft-Lbs (298 NM) @ 1600 RPM Q: What transmission did the 1978 Cadillac DeVille have? A: The 1978 Cadillac DeVille had a 3 speed Automatic Turbo-Hydramatic gearbox.
What are the dimension and mechanical specifications of the 1978 Cadillac DeVille?
How many 1978 Cadillac DeVille were produced?
How powerful was the 1978 Cadillac DeVille? Was the 1978 Cadillac DeVille popular? Was the 1978 Cadillac DeVille expensive? What was the fuel economy of the 1978 Cadillac DeVille?
Q: What is the wheelbase size of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille has a wheelbase size of 121.50 inches.Q: What is the length of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille has a length of 221.20 inches.Q: What is the width of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille has a width of 76.48 inches.Q: How much did the 1978 Cadillac DeVille cost when new?A: The 1978 Cadillac DeVille cost approximately $10,445 to $10,670 (USD) when new.Q: What were the bodystyles of the 1978 Cadillac DeVille? A: The 1978 Cadillac DeVille was offered as a Coupe, Sedan.Q: What tires did the 1978 Cadillac DeVille have? A: The 1978 Cadillac DeVille had GR78 x 15-B Steel-Belted radial with Wide White Sidewall tires.Q: How many vehicles did Cadillac produce in 1978? A: Cadillac produced 349,684 automobiles in 1978.Q: How many 1978 DeVilles were produced? A: Cadillac produced 206,701 examples of the DeVille in 1978.Q: What engines did the 1978 Cadillac DeVille have? A: The 1978 Cadillac DeVille had the following engine options: V 8 (6965 cc | 425.0 cu in. | 7.0 L.) with 195 HP (143.52 KW) @ 3800 RPM and 320 Ft-Lbs (434 NM) @ 2400 RPMSimilarly Sized Vehicles
from 1978
Cadillac Monthly Sales Volume
March 2023
36,321