The 1937 Series 90 remained essentially the same as the 1934-36 cars. 1937 was the final model year for the overhead valve V-16 engine. For the first time, hydraulic brakes (with a vacuum booster on the pedal) were used on these cars. A stabilizer bar was added to the front suspension. A Handy oil filter replaced the Cuno self-cleaning unit. A pressure cap was used on the radiator.
| Engine numbers were on the upper surface of the generator drive chain housing. | |
| Starting: 5130301. | |
| Ending: 5130350. |
| Series 37-90 Fleetwood 154 in. Wheelbase | ||||
|---|---|---|---|---|
| Style Number | Style | Seating | Price | Weight |
| 37-5725LB | Imperial Town Cabriolet | 7 | ||
| 37-5730S | Sedan | 5 | ||
| 37-5730FL | Imperial Cabriolet | 5 | ||
| 37-5733S | Town Sedan | 5 | 7350 | 6085 |
| 37-5735 | Convertible Coupe | 2 | ||
| 37-5775 | Imperial Sedan | 7 | 7550 | 6190 |
| 37-5775S | Sedan | 7 | 7350 | 6190 |
| 37-5775SF | Sedan | 7 | ||
| 37-5775FL | Imperial Cabriolet | 7 | 7950 | 6210 |
| 37-5775H4 | Limousine | 7 | ||
| 37-5776 | Coupe | 2 | ||
| 37-5780 | Convertible Sedan | 5 | 7950 | 6100 |
| 37-5785 | Collapsible Coupe | 5 | ||
| 37-5791 | Limousine Brougham | 7 | ||
| 37-5799 | Aero. Coupe | 5 | 7500 | |
| Type | 45 degree, overhead valve. |
| Cylinders | Sixteen Cylinders. |
| Block | Cast iron block on aluminum crankcase. |
| Bore & Stroke | 3 x 4 in. |
| Displacement | 452 cu. in. |
| Compression Ratio | 6.0:1 std. 5.65:1 opt. |
| Brake Horsepower | 185 @ 3800 rpm |
| SAE/Taxable Horsepower | 57.5. |
| Main bearings | Five. |
| Valve lifters | Mechanical with hydraulic silencer on rocker bushing. |
| Carburetor | Dual Detroit lubricator, type R-14, L-14, Model 51. |
| Wheelbase | 154 in. | |
| Overall length | 238 in. | |
| Front Tread | 59-3/8 | |
| Rear Tread | 62 in. | |
| Tires | 7.50 x 17. |
| Transmission | Selective, synchro transmission. |
| Speeds | 3 Forward, 1 Reverse. |
| Controls | Left Hand Drive, center control, emergency lever at left under panel (rhd opt). |
| Clutch | Twin disc clutch. |
| Drive | Shaft drive Hotchkiss. |
| Axle | 3/4 floating rear axle, spiral bevel drive. |
| Overall ratio | 4.64:1 std. 4.31:1 opt., 4.07:1 opt. |
| Brakes | Hydraulic brakes with vacuum booster on four wheels. |
| Wheels | Wire wheels with disc cover. |
| Wheel size | 17 in. drop center. |