The Buick Centurion Hardtop is a 4 door saloon (sedan) style road car with a front located engine powering the rear wheels.
It forms part of Buick's Series 46600 model range.
The 7.5 litre engine is a naturally aspirated, overhead valve, 8 cylinder unit that develops 265 bhp (269 PS/198 kW) of power at 4400 rpm, and maximum torque of 522 N·m (385 lb·ft/53.2 kgm) at 2800 rpm.
The engine supplies its power through to the wheels by means of a 3 speed automatic gearbox.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3150 mm | 124 inches | |
| Track/tread (front) | 1616 mm | 63.6 inches | |
| Track/tread (rear) | 1626 mm | 64 inches | |
| Length | 5607 mm | 220.7 inches | |
| Width | 2025 mm | 79.7 inches | |
| Height | 1366 mm | 53.8 inches | |
| Ground clearance | 138 mm | 5.4 inches | |
| length:wheelbase ratio | 1.78 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 94.7 litres | 20.8 [25] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Buick | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 7.5 litre 7468 cc (455.725 cu in) |
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| Bore × Stroke | 109.54 × 99.06 mm
4.31 × 3.9 in |
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| Bore/stroke ratio | 1.11 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (net) |
269 PS (265 bhp) (198 kW) at 4400 rpm |
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| maximum torque (net) |
522 Nm (385 ft·lb) (53.2 kgm) at 2800 rpm |
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| Specific output (net) |
26.5 kW/litre 36 ps/litre 35.5 bhp/litre 0.58 bhp/cu in |
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| Specific torque (net) |
69.9 Nm/litre
0.84 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) | 878.4 kPa (127.4 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 933.5 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 | 6.00JJ x 15 | ||
| Wheel size rear | 6.00xJJ x 15 | ||
| Tyres front | H78-15 | ||
| Tyres rear | H78-15 | ||
| Brakes F/R | VeDi/Dr | ||
| Front brake diameter | 301 mm | ||
| Rear brake diameter | 279 mm | ||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 2.93 | ||
| general | |||
| Carfolio.com ID | 796708 | ||
| Production total | |||
| Model code | 46639 | ||
| Model family | Series 46600 | ||
| RAC rating | 59.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1971 Buick Centurion Hardtop added 2023-05-06. Last modified 2023-05-07. |
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