Seville Cadillac History 1977

Seville Cadillac Models & History 1977

Seville had been the first production American car to offer a 350 cu. in. electronic-fuel-injected engine as standard, and it returned for 1977. Sensors fed engine data back to an on-board analog computer under the dash, which in turn signaled the eight injectors how to meter the fuel charge from the constant-supply fuel rail. Added this year were standard four-wheel power disc brakes, a retuned suspension system, and Butyl rubber body mounts. Other standard features included

  • variable ratio power steering (16.4 to 13.8)
  • front and rear stabilizer bars
  • 15 in. wide-whitewall steel-belted radial tires
  • automatic level control

1977 Cadillac Seville

Seville entered the model year wearing a new vertical grille, rectangular quad headlamps, and new amber parking/signal lamps. A total of 21 body colors were offered (15 standard and six extra-cost Firemist), plus 16 color-coordinated Tuxedo Grain padded vinyl tops (including metallic colors). Painted metal tops were also available, but most customers chose vinyl.

A new Scan button on the AM/FM signal-seeking stereo radio allowed sampling of each station for six seconds. Seville’s front end was similar to full-size Cadillacs, but the grille used only three horizontal divider bars and many vertical bars, forming vertical “holes.” That tight grille pattern was repeated between the license plate holder and bumper guards. Four amber-lensed parking/signal lamps sat below the quad rectangular headlamps, with large cornering lamps on fender sides. Cadillac’s crest was on the rear pillar; a Seville nameplate on front fenders between door and wheels. On the hood was a stand-up wreath/crest ornament.

1977 Cadillac Seville

On the option list: wire wheel covers. Standard upholstery was smooth Dover cloth in claret, black, light gray, dark blue, medium sage green, light yellow-gold, light buckskin, or medium saffron. Optional was Sierra Grain leather in ten colors (including white). Standard fittings included:

  • power windows and door locks
  • tilt/telescope steering wheel
  • individual rear reading lamps
  • automatic parking brake release
  • a new seat/shoulder belt combination

1977 Cadillac Seville

A chime warned that seat belts weren’t buckled. Concealed wipers worked with a Controlled Cycle system. Body finishing used extensive hand work. Large-diameter Pliacell-R- shock absorbers were the same as those on the Cadillac limo. Bolts were epoxy-encapsulated to prevent loosening.


Model No. Style Number Body Type Seating Factory Price Shipping Weight Production Total
6K S69 4-door Sedan 5 $13,359 4192 45,060

Note 1: In addition to amount shown, 1,152 Sevilles were built in Canada.


Type 90-degree, overhead valve V-8
Block & Head Cast iron block and head
Displacement 350 cu. in. (5.7 liters
Bore & stroke 4.057 x 3.385 in.
Compression ratio 8.0:1
Brake horsepower 180 @ 4400 rpm
Torque 275 lbs.-ft. at 2000 rpm
Bearings Five main bearings
Valve Lifters Hydraulic valve lifters
Fuel Supply Electronic fuel injection (speed-density, port-type
Built by Oldsmobile
VIN Code R


Wheelbase 114.3″
Overall length 204.0″
Height 54.6″
Width 71.8″
Front Tread 61.3″
Rear Tread 59.0″
Standard tire GR78 x 15-B SBR wide WSW


Transmission Turbo Hydra-matic transmission standard on all models; column shift
Gear ratios (1st) 2.48:1; (2nd) 1.48:1; (3rd) 1.00:1; (Rev) 2.07:1
Standard axle (final drive) ratio 2.56:1, with 3.08:1 optional (std. high altitude
Rear Axle Salisbury type rear axle
Steering variable-ratio, power assisted
Front suspension independent coil spring, link-type stabilizer
Rear Suspension Hotchkiss leaf spring, link-type stabilizer
Level Control Automatic level control
Brakes four-wheel disc
Ignition HEI electronic ignition
Fuel tank 21 gal.


Heavy-duty cooling system $43
80-amp alternator $47
California emission equipment $70
Limited slip differential $61
High altitude pkg. $22
Trailering pkg. $43


Astroroof for full vinyl roof $938
Astroroof (painted $1043
Sunroof for full vinyl roof $742
Sunroof (painted roof $846
Cruise control $111
Controlled-cycle wipers $30
Rear defogger, grid-type $83
Six-way dual comfort power seat adjuster, passenger $107-$138
Six-way power driver’s seat adjuster $99
Power passenger 50/50 seat with six-way adjuster $197-$248
Driver’s 50/50 seat recliner $110
Tilt/telescope steering wheel $109
Automatic door locks $101
Illuminated entry system $56
Fuel monitor $28
Theft deterrent system $123
Trunk lid release and power pull-down $61-$73
Twilight Sentinel $51
Guidematic headlamp control $58
Remote-control right mirror $32
Lighted thermometer on left mirror $26
Lighted vanity mirror $47
AM/FM stereo radio w/tape player $100
AM/FM stereo radio w/CB $230
Signal-seeking/scan AM/FM stereo radio $156
Firemist paint $153
Door edge guards $8-$12
License frame each $7
Leather seats $235-$252
Twin floor mats $13-$28
Trunk mat $10
Turbine-vaned wheel covers $49
Wire wheel covers $176