This line reflected Series 62 styling revisions, but incorporated a DeVille signature script above the lower beltline molding, near the rear of the body. Standard features on DeVilles (and on base 6200 convertibles) were the same as on closed body 6200 models, plus two-way power seats and power windows.
| Type | V-8 |
| Valves | Overhead valves |
| Block | Cast iron block |
| Displacement | 6.384 Liters |
| Bore and stroke | 101.6mm x 98.4mm |
| Compression ratio | 10.5:1 |
| Horsepower | 325 hp @ 4800 rpm |
| Power | 242 kW @ 4800 rpm |
| Bearings | Five main bearings |
| Valve Lifters | Hydraulic valve lifters |
| Carburetion | Rochester four-barrel model 710930 |
NOTE:
| Model No. | Style No. | Body Type | Seat | Factory Price | Shipping Weight | Production Total |
|---|---|---|---|---|---|---|
| 63-63L | 6329L |
4-door 6-window Sedan | 6 | $5633 | 2114 kg | 15,146 |
| 63-63J | 6357J |
2-door Coupe Deville | 6 | $5386 | 2055 kg | 31,749 |
| 63-63B | 6339B |
4-door 4-window Sedan | 6 | $5633 | 1848 kg | 30,579 |
| 63-63D | 6389D |
4-door Park Ave | 6 | $5633 | 2086 kg | 1,575 |
NOTES:
| Feature | Series 6300 Deville | Park Avenue |
|---|---|---|
| Wheelbase | 3289mm | 3289mm |
| Overall Length | 5664mm | 5461mm |
| Tires | 8.00 x 15 | 8.00 x 15 |
| Rear axle ratio | 2.94:1 | 2.94:1 |