The Chevrolet Impala Convertible Powerglide is a convertible/cabriolet with 2 doors and a front mounted engine which delivers its power to the rear wheels.
It forms part of Chevrolet's 1700-1800 Bel Air series of cars.
The 8 cylinder, overhead valve naturally aspirated engine has 2 valves per cylinder and a displacement of 4.6 litres. In this application it develops power and torque figures of 185 bhp (188 PS/138 kW) at 4600 rpm and 373 Nm (275 lbft/38 kgm) at 2400 rpm respectively.
This power is supplied to the wheels by means of a 2 speed automatic gearbox.
Quoted kerb weight is 1705 kg.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2985 mm | 117.5 inches | |
| Track/tread (front) | 1494 mm | 58.8 inches | |
| Track/tread (rear) | 1494 mm | 58.8 inches | |
| Length | 5311 mm | 209.1 inches | |
| Width | 1974 mm | 77.7 inches | |
| Height | 1501 mm | 59.1 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.78 | ||
| Kerb weight | 1705 kg | 3759 lb | |
| 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 | Chevrolet | ||
| Engine code | Turbo-Fire V8 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 4.6 litre 4639 cc (283.089 cu in) |
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| Bore × Stroke | 98.43 × 76.2 mm
3.88 × 3 in |
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| Bore/stroke ratio | 1.29 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (gross) |
188 PS (185 bhp) (138 kW) at 4600 rpm |
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| maximum torque (gross) |
373 Nm (275 ft·lb) (38 kgm) at 2400 rpm |
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| Specific output (gross) |
29.7 kW/litre 40.4 ps/litre 39.9 bhp/litre 0.65 bhp/cu in |
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| Specific torque (gross) |
80.41 Nm/litre
0.97 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 8.5:1 | ||
| Fuel system | 1 Rochester carburettor | ||
| bmep (brake mean effective pressure) | 1010.4 kPa (146.5 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 579.88 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 | Higher is better 110.01 PS/tonne (1000 kg) 0.11 PS/kg 80.91 kW/tonne (1000 kg) 0.08 kW/kg 108.5 bhp/tonne (1000 kg) 0.11 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 12.36 kg/kW 20.64 lb/bhp |
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| 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 | 5J x 14 | ||
| Wheel size rear | 5J x 14 | ||
| Tyres front | 8.00-14 | ||
| Tyres rear | 8.00-14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 279 mm | ||
| Braked area | |||
| Gearbox | 2 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.36 | ||
| general | |||
| Carfolio.com ID | 668085 | ||
| Production total | |||
| Model code | 1867P | ||
| Model family | 1700-1800 Bel Air | ||
| RAC rating | 48.1 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1958 Chevrolet Impala Convertible Powerglide added 2020-04-07. Last modified 2020-04-10. |
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