Fleetwood Cadillac History 1956

Fleetwood Cadillac Models & History 1956

Sidetrim on the long-wheelbase Fleetwood models was about the same as 1955, except for the addition of exhaust extension moldings on the rear fender. This trim ran along a tapering conical flare from above the wheel housing to the rear bumper. A Fleetwood script appeared on the deck lid and limousine styling was seen again. Changes in grilles and bumpers conformed to those used with other series. Both models had auxiliary seats and the Imperial sedan again featured a glass driver’s partition. Standard equipment on all Cadillacs was comparable to that included the previous year.


1956 Cadillac Coupe DeVille

  • Serial numbers and engine numbers were the same again and were found in the same locations.
  • The first two symbols were “56” to designate 1956 model production.
  • The next two symbols indicated the series as follows:
    • “62” = Series 62
    • “60” = Fleetwood Sixty
    • “75” = Fleetwood 75
  • The remaining digits represented the consecutive unit number and began at 00000 for each series.
  • All series had the same ending number, which would be misinterpreted if listed.


Model Number Body Style Doors Model Seat Price Weight Production Total
55-75 7523X 4-door Sedan 7 $6558 2295 kg 1095
55-75 7533X Imperial Sedan 8 $6773 2332 kg 955
55-86 8680S Commercial chassis 2,025

NOTE: The commercial chassis featured a 4013mm wheelbase and was provided to makers of professional cars for construction of funeral cars and ambulances, etc.


Feature Standard Engine Optional Engine
Type V-8: Overhead valves V-8: Overhead valves
Block Cast iron block Cast iron block
Displacement 5.972 Liters 5.972 Liters
Bore and stroke 101.6mm x 92.1mm 101.6mm x 92.1mm
Compression ratio 9.75:1 9.75:1
Horsepower rating 285 hp @ 4600 rpm 305 hp @ 4700 rpm
Power rating 213 kW @ 4600 rpm 227 kW @ 4700 rpm
Main bearings Five Five
Valve lifters Hydraulic Hydraulic
Carburetor Carter WCFB four-barrel, Model 2370S Two (2) Carter WCFB four-barrel, Model 2371S


Feature Series 75 Fleetwood
Wheelbase 3804mm
Overall Length 5987mm
Front Tread 1524mm
Rear Tread 1603mm
Tires 8.20 x 15 Blackwall
Exhaust Dual exhaust


Air conditioning.
White sidewall tires.
E-Z-Eye safety glass.
Autronic eye automatic headlamp dimmer.
Signal-seeking radio with preselector and antenna.
Heating and ventilation system.
Power window lifts (std).
Gold finish grille.