Cadillac Fleetwood Models & History 1963


The Sixty-Special Fleetwood sedan was, again, distinguished by chevron slashes of bright metal on the sides of the roof “C” pillars. Also seen were full-length bright metal underscores, clean side styling, a rear end quadrant pattern grille and Cadillac crest medallions toward the back of the rear fenders. Standard equipment included all normal 6300 sub-series features, plus power ventipanes.


Model Number Style Number Body Type Seating Factory Price Shipping Weight Production Total
63-60M 6039M 4-door Hardtop Sedan 6 6366 4690 14,000


Cadillac’s extra-long nine-passenger cars were the only pillared four-door sedans in the line. Standard equipment was the same as on base 6300 models and Series 62 convertibles. Trimmings included a full-length lower beltline molding of a simple, but elegant design. Convertible top-look rooflines and windshields with forward “dog leg” style pillars were 1962 carry-overs seen exclusively on this line.


Model Number Style Number Body Type Seating Factory Price Shipping Weight Production Total
63-67R 6723R 4-door Sedan 9 9724 5240 680
63-67S 6733S 4-door Limousine 9 9939 5300 795
63-68 6890 Commercial chassis 2,527

NOTE: The commercial chassis featured a 156 inch wheelbase and was provided to professional car makers for construction of funeral cars, ambulances, etc.


Motor serial numbers took the same form used in 1962, with the first pair of symbols changed to “63” to indicate the new model year.
Applicable codes were stamped in the same locations on the cars.


Type V-8
Valves Overhead valves
Block Cast iron block
Displacement 390 cubic inches
Bore and stroke 4.00 x 3.875 inches
Compression ratio 10.5:1
Horsepower 325 @ 4800 rpm
Bearings Five main bearings
Valve Lifters Hydraulic valve lifters
Carburetion Rochester four-barrel model 710930.


  • Although neither engine displacement or output changed, the 1963 Cadillac V-8 was completely redesigned.
  • Quieter, smoother and more efficient, the new motor was one-inch lower, four inches narrower and 1-1/4 inches shorter than the 1962 V-8.
  • It was also some 82 pounds lighter, due to the use of aluminum accessory drives.


Feature Series 60 Series 75
Wheelbase 129.5″ 149.8″
Overall length 223″ 243.3″
Tires 8.00 x 15 8.20 x 15
Rear axle ratio 2.94:1 3.36:1


None available.


Air conditioner for Series 75 $624
Automatic headlight control $45
Controlled differential $54
Cruise Control $97
Door guards $7
Electric door locks $70
E-Z-Eye Glass $52
Leather upholstery for style 6039M $134
License plate frame $6
Padded roof for style 6039M $134
Six-way power seat $85 or $113 depending on body style
Power window regulators as an option $118
Power ventipanes as an option $73
Radio with rear seat speaker $165
Radio with rear seat speaker and remote control $247
AM/FM radio $191
Adjustable steering wheel $48.
Remote control trunk lock $53.
Five white sidewall tires, 8.20 x 15 four-ply on Series 60 $57 exchange.
Five white sidewall tires, 8.20 x 15 six-ply on Series 75 models $64 exchange.