The Packard Four Hundred is a rear wheel drive car, with the motor mounted in the front, and a 4 door saloon (sedan) bodyshell.
The Four Hundred forms part of Packard's 5680 model series.
Power is supplied by an overhead valve, 6.1 litre naturally aspirated 8 cylinder motor, with 2 valves per cylinder that produces power and torque figures of 290 bhp (294 PS/216 kW) at 4600 rpm and 549 N·m (405 lb·ft/56 kgm) at 2800 rpm respectively.
A 3 speed manual 'box supplies the power to the wheels.
Full specs
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| bodywork | |||
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| Body type | 5/6 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3226 mm | 127 inches | |
| Track/tread (front) | 1524 mm | 60 inches | |
| Track/tread (rear) | 1547 mm | 60.9 inches | |
| Length | 5553 mm | 218.6 inches | |
| Width | 1981 mm | 78 inches | |
| Height | 1567 mm | 61.7 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.72 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 75.8 litres | 16.7 [20] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | packard | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 6.1 litre 6135 cc (374.381 cu in) |
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| Bore × Stroke | 104.8 × 88.9 mm
4.13 × 3.5 in |
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| Bore/stroke ratio | 1.18 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (gross) |
294 PS (290 bhp) (216 kW) at 4600 rpm |
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| maximum torque (gross) |
549 Nm (405 ft·lb) (56 kgm) at 2800 rpm |
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| Specific output (gross) |
35.2 kW/litre 47.9 ps/litre 47.3 bhp/litre 0.77 bhp/cu in |
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| Specific torque (gross) |
89.49 Nm/litre
1.08 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 10:1 | ||
| Fuel system | 1 Rochester carburettor | ||
| bmep (brake mean effective pressure) | 1124.5 kPa (163.1 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 766.88 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 6L x 15 | ||
| Wheel size rear | 6L x 15 | ||
| Tyres front | 8.00 x 15 4PLY | ||
| Tyres rear | 8.00 x 15 4PLY | ||
| Brakes F/R | Dr/Dr-S | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.54 | ||
| general | |||
| Carfolio.com ID | 644996 | ||
| Production total | |||
| Model code | 5687 | ||
| Model family | 5680 | ||
| RAC rating | 54.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1956 Packard Four Hundred added 2020-02-29. Last modified 2020-03-16. |
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