A dramatically different front-drive, C-body Coupe DeVille (and Fleetwood
sedan) hit the market late in March of 1984, as early '85 models. The Grand
Old Caddies lost two feet in length and about 600 pounds. Their
front-drive chassis layout was also used by Buick Electra and Oldsmobile
Ninety-Eight. Though not exactly small, both were a far cry from the
DeVilles and Fleetwoods of prior eras. Arriving in the fall was a new
Fleetwood coupe, with formal cabriolet vinyl roof and opera lamps, as well
as wire wheel covers. Both coupe and sedan carried a claimed six passengers.
A transverse-mounted 249 cu. in. (4.1 liter) V-8 engine with
throttle-body fuel injection was standard; 4.3-liter V-6 diesel a no-charge
option. Cadillac's was the only transverse-mounted V-8 available in the world.
Oldsmobile's diesel V-8 engine also was available. Inside the automatic
transmission, the torque converter clutch was computer-controlled and
operated by silicone fluid.
All models included the Retained power Accessory System, which permitted
use of power windows and trunk release for 10 minutes after shutting off
the engine. A third brake light was now mounted on the rear panel shelf.
Standard equipment included
four-speed overdrive automatic transmission
power steering and brakes
tungsten-halogen headlamps
body-colored protective side moldings
six-way power driver's seat
power windows and door locks
side window defogger
electronic climate control
a Delco 2000 AM/FM stereo radio with electronic tuning and seek/scan
remote-controlled outside mirrors
courtesy/reading lamps in the sail panel
power decklid release
P205/75R14 all-season steel-belted radials
Model
Series Number
Body/Style
Number
Body Type
Seating
Factory
Price
Shipping Weight
Production Total
DeVille (V-8)
6C
D47
2-door
Coupe
6
$18,355
3330 lb
37,485 (total includes the
2-door Fleetwood)
DeVille (V-8)
6C
D69
4-door
Sedan
6
$18,947
3327 lb
114,278 (total included the
4-door Fleetwood)
Engine note: Diesel V-6 engines were available on DeVille & Fleetwood
models with no extra charge.
ENGINE
Feature
BASE V-8
OPTIONAL DIESEL V-6
Type
90-degree, overhead valve V-8. Cast iron block and head
90-degree, overhead
valve V-8. Cast iron block and head
Displacement
249 cu. in. (4.1 liters)
262 cu. in. (4.3 liters)
Bore & stroke
3.47 x 3.31 in.
4.06 x 3.39 in.
Compression ratio
8.5:1
21.6:1
Brake horsepower
125 at 4200 R.P.M.
85 at 3600 R.P.M.
Torque
190 lbs.-ft. at 2200 R.P.M.
165 lbs.-ft. at 1600 R.P.M.
Main bearings
Five
Four
Valve lifters
Hydraulic
Hydraulic
Fuel Supply
Fuel Injection
Fuel Injection
CHASSIS
Wheelbase: 110.8 in.
Overall length: 195.0 in.
Height: 55.0 in.
Width: 71.7 in.
Front Tread: 60.3 in.
Rear Tread: 59.8 in.
Standard Tires: P205/75R14 SBR WSW
TECHNICAL
Transmission: Four-speed overdrive automatic (THM440-T4) standard on
