Cadillac Models & History 1931 V12
MODEL 370-A
1931 Cadillac Fleetwood
TheCadillac Series 370-A (a twelve cylinder) was similar to the 1930-31 V-16. except some bodies were built by Fisher, but all body interiors were built by Fleetwood. The coach sill was modified with a single molding on the splash shield. The battery was mounted in the right front fender. The hood was 100mm shorter than the V-16 and 127mm longer than the V-8. The instrument panel was similar to the V-8 panel. The headlights were 25mm smaller in diameter than the V-16 headlights. The dual rear lights were ball shaped like the V-8. The dual horns were slightly smaller than on the V-16.
1931 Cadillac
The frame had divergent side rails like the Series 355. The rear springs were mounted under the frame rails. The front tread was the same as the V-8. The brakes had a vacuum assist which was operated only from the left manifold. The brake drums were 381mm. The sedans had two wheelbase sizes: 3556mm and 3632mm; but the semi-commercial unit had a 3861mm wheelbase.
1931 Cadillac
The engine had dual intake silencers which were slightly smaller than the single unit on the V-8 and were positioned at the rear where the V-16 vacuum tanks were mounted. The carburetors were similar to the V-16, but they were reversed so that the air inlet was at the rear. A single vacuum tank was mounted on the center of the dash where the V-16 oil filter was mounted. The oil filter was mounted on the left side of the crankcase. The bore was 3mm larger than the V-16. The rear center main (number 3) takes the thrust. The exhaust manifolds had two sections rather than three. The spark plug wires came out the top of the distributor cap rather than the rear.
I. D. DATA
1931 Cadillac
- Serial numbers were not used on the 1931 Series 370-A.
- The engine numbers were stamped on the right hand side of the crankcase, on the generator drive chain housing.
- It started with 1000001 and ended with 1005733.
STYLE
| Fisher 140″ Wheelbase | |||||
|---|---|---|---|---|---|
| Style | Doors | Model | Passenger | Price | Weight |
| 31152 | 4 | Town sedan | 5 | $3945 | 2423 kg |
| 31158 | 2 | Coupe | 2/4 | $3795 | 2334 kg |
| 31159 | 4 | Sedan | 5 | $3895 | 2416 kg |
| 31172 | 2 | Coupe | 5 | $3895 | 2343 kg |
STYLE
| Fisher 143″ Wheelbase | |||||
|---|---|---|---|---|---|
| Style | Doors | Model | Passenger | Price | Weight |
| 31162 | 4 | Sedan | 7 | $4195 | 2475 kg |
| 31163 | 4 | Imperial Sedan | 7 | $4345 | 2509 kg |
STYLE
| Fleetwood 140″ Wheelbase | |||||
|---|---|---|---|---|---|
| Style | Doors | Model | Passenger | Price | Weight |
| 4702 | 2 | Roadster | 2/4 | $3945 | 2277 kg |
| 4735 | 2 | Convertible Coupe | 2/4 | $4045 | 2320 kg |
| 4757 | 4 | Transformable | 7 | $4295 | |
| 4760 | 4 | Phaeton | 5 | $4045 | 2295 kg |
| 4780 | 4 | All weather phaeton | 5 | $4895 | 2427 kg |
| 4785 | 2 | Convertible coupe | 5 | ||
STYLE
| Fleetwood 143″ Wheelbase | |||||
|---|---|---|---|---|---|
| Style | Doors | Model | Passenger | Price | Weight |
| 4750 | 4 | Full Coll Cabriolet | 7 | ||
| 4812 | 4 | Transformable Town Cabriolet | 5/7 | ||
| 4820 | 4 | Transformable Town Cabriolet | 5/7 | ||
| 4825 | 4 | Transformable Town Cabriolet | 7 | ||
| 4825-C | 4 | Coll Transformable Town Cabriolet | 7 | ||
| 4830 | 4 | Imperial Sedan | 5/7 | ||
| 4830-S | 4 | Sedan | 5 | ||
| 4850 | 4 | Transformable Cabriolet | 7 | ||
| 4855 | 4 | Imperial Cabriolet | 5/7 | ||
| 4855-S | 4 | Sedan Cabriolet | 5 | ||
| 4856-A | 4 | Imperial Sedan | 8 | ||
| 4864 | 4 | Town Brougham | 5 | ||
| 4864-B | 4 | Town Brougham | 5 | ||
| 4864-Q | 4 | Town Brougham | 5 | ||
| 4875 | 4 | Imperial Sedan | 7 | ||
| 4875-S | 4 | Sedan | 7 | ||
| 4882 | 4 | Sedanette | 7 | ||
| 4883 | 4 | Limousette | 7 | ||
| 4891 | 4 | Transformable Limousine Brougham | 7 | ||
ENGINE
1931 Cadillac
| Type | 45 degree overhead valve |
| Cylinders | Twelve |
| Material | Cast iron on aluminum crankcase |
| Bore & stroke | 79.4mm x 101.6mm |
| Displacement | 6.035 Liters |
| Compression ratio | 5.38:1, 5.20:1, 5.03:1 |
| Brake horse power | 135 @ 3400 rpm |
| SAE/Taxable HP | 46.9 |
| Main bearings | 4 |
| Valve lifters | Mechanical with hydraulic silencer on rocker bushing |
| Carburetor | Dual Cadillac/Johnson with intake silencer |
1931 Cadillac Fleetwood
CHASSIS
1931 Cadillac
| Wheelbase series 370-A | 3556mm |
| Wheelbase 7 pass Sedan & Imperial | 3632mm |
| Wheelbase commercial | 3861mm |
| Overall length | 5334mm to 5588mm |
| Height | 1842mm |
| Front tread | 1454mm |
| Rear tread | 1511mm (beginning with chassis serial number 10-2720, tread is 1537mm) |
| Tires | 7.00 x 19 whitewall |
| Optional tires | 7.50 x 18 |
DRIVETRAIN
1931 Cadillac
| Transmission | Selective synchro transmission |
| Speeds | 3 forward, 1 reverse |
| Control | left hand steering, control mounted in center, right hand optional |
| Clutch | Twin disc |
| Drive | Shaft drive with torque tube |
| Axle | 3/4 floating rear axle |
| Differential | spiral bevel |
| Overall ratio | std 4.54:1, opt 4.07:1, 4.91:1 |
| Brakes | Mechanical brakes on 4 wheels with vacuum assist |
| Brake drums | 15″ |
| Wheels (std) | wood artillery |
| Optional wheels | wire, disc, demountable wood |
| Wheel size | std 19″, opt. 18″ |
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1931 Cadillac
Keyword: Cadillac History 1931 V12