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 |
I. D. NUMBERS
| 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. |
ENGINE
| 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. |
CHASSIS
| Wheelbase | 129.5″ |
| Overall length | 223.5″ |
| Tires | 8.20 x 15 |
| Rear axle ratio | 2.94:1. |
POWERTRAIN OPTIONS
| None available. |
CONVENIENCE OPTIONS
| Options and accessories available this year were about the same as 1963 at the same prices. |