New front-drive versions of DeVille and Fleetwood were anticipated, but delayed because of quality control questions; so for 1984 the rear-drive coupe and sedan carried on. Bodyside moldings were now color-keyed to the body finish. Taillamp lenses held goldtone Cadillac wing crests. All models now had electronic level control. The standard fuel-injected 249 cu. in. (4.1-liter) V-8 engine fed into a revised exhaust system with monolithic catalytic converter.
Electronic controls were modified to meet stricter emissions standards in high-altitude regions. The diesel V-8 remained on the option list, except in California because of its emissions Model regulations. Standard equipment included
power brakes and steering,
whitewall steel-belted radials,
electronic level control,
automatic climate-control air conditioning,
signal-seeking stereo radio with power antenna,
cornering lights,
light monitors
power windows
six-way power seat,
tinted glass,
a remote-control left outside mirror,
right visor mirror,
automatic parking brake release,
P215/75R15 tires
a stowaway spare.
The front-wheel drive editions appeared during the ’84 model year as early 1985s.
STYLE
Model
Series Number
Body/Style Number
Body Type
Seating
Factory Price
Shipping Weight
Production Total
DeVille (V-8)
6C
M47
2-dr Coupe
6
$17,140
3935 lb
50,840 (total includes the 2-door Fleetwood Brougham)
DeVille (V-8)
6C
M69
4-dr Sedan
6 P
$17,625
3993 lb
107,920 (total included the 4-door Fleetwood Brougham)
ENGINES
Feature
Standard Engine
Optional Engine
Fuel
Gasoline
Diesel
Type
90-degree, overhead-valve V-8. Iron/aluminum alloy block; cast iron head.
90-degree, overhead valve V-8. Cast iron block and head.
Displacement
249 cu. in. (4.1 liters).
350 cu. in. (5.7 liters)
Bore & stroke
3.47 x 3.31 in.
4.05 x 3.38 in.
Compression ratio
8.5:1
22.7:1
Brake horsepower
135 at 4400 R.P.M.
105 at 3200 R.P.M.
Torque
200 lbs.-ft. at 2200 R.P.M.
200 lbs.-ft. at 1600 R.P.M.
Main bearings
Five
Five
Valve lifters
Hydraulic
Hydraulic
Fuel supply
Digital fuel injection (single-point, dual injectors)
