more distinguished-looking Biarritz arrived for 1963. The lower body “skeg” lines of 1961-62 were erased on all Cadillacs, and wide brushed-finish rocker panel moldings gave the Biarritz closer kinship with the svelte Sixty Special. The price remained stable — a nominal two dollars less than the year before — and production, though still limited, increased significantly.
I. D. NUMBERS
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.
Cast iron block
390 cubic inches
Bore and stroke
4.00 x 3.875 inches
325 @ 4800 rpm
Five main bearings
Hydraulic valve lifters
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.
Model 6367E, the Eldorado Biarritz convertible, had special styling with untrimmed body sides, full-length stainless steel underscores and a rectangular grid pattern rear decorative grille. Power vent windows, white sidewall tires and six-way power seats (in bench seat mode) were standard in Eldorados.
2-door Sport Convertible
8.20 x 15 whitewall
Rear axle ratio
Automatic headlight control
Door guards for
Electric door locks
License plate frame
Six-way power seat
$85 or $113 depending on body style
Power window regulators as an option
Power ventipanes as an option
Radio with rear seat speaker
Radio with rear seat speaker and remote control
Adjustable steering wheel
Remote control trunk lock
Five white sidewall tires, 8.20 x 15 four-ply standard on Eldorado