Series 75 Cadillac History 1951

Series 75 Cadillac Models & History 1951

Series 75 Fleetwood models were also facelifted to conform to the minor changes seen in other lines. Jump seats were used in both the seven-passenger sedan and Imperial limousine. Hydra-Matic drive was optional and hydraulic window lifts were standard. Business sedans were built in limited numbers on a special order basis.


1951 Cadillac Fleetwood 75

  • Motor serial numbers 517500000 and up appeared on 1951 Series 75 Fleetwood models.


Model Number Body Style Doors Model Seat Price Weight Production Total
51-75 7523X 4-door Sedan 8 $5200 2070 kg 1,090
51-75 7533X 4-door Imperial Sedan 8 $5405 2085 kg 1,085
51-75 7523L 4-door Business Sedan 8 30
51-75 86 Commercial chassis 2,960

NOTE: The commercial chassis featured a 3988mm wheelbase and was supplied to professional car makers for construction.


Type V-8: Overhead valves.
Block Cast iron block.
Displacement 5.425 Liter
Bore and stroke 96.8mm x 92.1mm
Compression ratio 7.50:1.
Brake horsepower 160 hp @ 3800 rpm
Power 119 kW @ 3800 rpm
Bearings Five main bearings.
Valve lifters Hydraulic valve lifters.
Carburetor Carter WCD two-barrel Model 845S – also – Rochester BB two-barrel Model 7004200.


Model Wheelbase Overall Length Front Tread Rear Tread Tires
Series 61 3099mm 5382mm 1499mm 1600mm 8.00 x 15
Series 62 3200mm 5737 1499mm 1600mm 8.00 x 15
Series 60S 3302mm 5712mm 1499mm 1600mm 8.00 x 15
Series 75 3728mm 6002mm 1499mm 1600mm 8.20 x 15


Hydra-Matic drive on Series 61 and 75 $186


Power windows (specific models).
Heating and ventilating system.
Radio and antenna.
Chrome wheel discs.
Windshield washers.
Fog lamps.
White sidewall tires (availability limited).


  • The Series 61 line was discontinued in the middle of the year due to lagging sales.
  • Charles E. Arnold was chief engineer