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.
2-door Sport Convertible
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.
Cast iron block
429 cubic inches
Bore and stroke
4.13 x 4.00 inches
340 @ 4600 rpm
Five main bearings
Hydraulic valve lifters
Carter AFB four-barrel model 3655S.
8.20 x 15
Rear axle ratio
Options and accessories available this year were about the same as 1963 at the same prices.