Cadillac Eldorado Models & History 1964

The off-again/on-again rear fender skirts were gone again for 1964. Otherwise, this year’s Fleetwood Eldorado convertible looked very much like the ’63 Biarritz. Price went up by a paltry $22, but performance went up in a big way as both bore and stroke were increased (to 4.13 x 4.00 inches) for 429 cid and 340 bhp. A significant development was the arrival of GM’s new Turbo-Hydramatic transmission.

Model Number Style Number Body Type Seating Factory Price Shipping Weight Production Total
64-63P 6367P 2-door Sport Convertible 6 6630 4605 1,870


Motor serial numbers were located on the left side of the engine block and lefthand frame side bar.
The first two symbols, “64” identified the model year.
The third symbol, a letter, designated body type.
The last six numerical symbols indicated unit production sequence.


Type V-8
Valves Overhead valves
Block Cast iron block
Displacement 429 cubic inches
Bore and stroke 4.13 x 4.00 inches
Compression ratio 10.5:1
Horsepower 340 @ 4600 rpm
Bearings Five main bearings
Valve Lifters Hydraulic valve lifters
Carburetion Carter AFB four-barrel model 3655S.


Wheelbase 129.5″
Overall length 223.5″
Tires 8.20 x 15
Rear axle ratio 2.94:1.


None available.


Options and accessories available this year were about the same as 1963 at the same prices.