The Buick GSX 455 Stage I is a rear wheel drive vehicle, with the powerplant positioned in the front, and a 2 door coupé body.
The power is produced by a naturally aspirated engine of 7.5 litre capacity. This powerplant features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It produces 360 bhp (365 PS/268 kW) of power at 4600 rpm, and maximum torque of 691 N·m (510 lb·ft/70.5 kgm) at 2800 rpm.
A 4 speed manual transmission transmits the power to the driven wheels.
Its stated weight at the kerb is 1768 kg.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | 1527 mm | 60.1 inches | |
| Track/tread (rear) | 1499 mm | 59 inches | |
| Length | 5131 mm | 202 inches | |
| Width | 1963 mm | 77.3 inches | |
| Height | 1346 mm | 53 inches | |
| Ground clearance | 163 mm | 6.4 inches | |
| length:wheelbase ratio | 1.8 | ||
| Kerb weight | 1768 kg | 3898 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 | GM | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 7.5 litre 7466 cc (455.603 cu in) |
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| Bore × Stroke | 109.5 × 99.1 mm
4.31 × 3.9 in |
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| Bore/stroke ratio | 1.1 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output | 365 PS (360 bhp) (268 kW) at 4600 rpm |
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| maximum torque | 691 Nm (510 ft·lb) (70.5 kgm) at 2800 rpm |
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| Specific output | 36 kW/litre 48.9 ps/litre 48.2 bhp/litre 0.79 bhp/cu in |
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| Specific torque |
92.55 Nm/litre
1.12 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 10.5:1 | ||
| Fuel system | 1 Rochester Quadrajet carburettor | ||
| bmep (brake mean effective pressure) | 1163.1 kPa (168.7 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 933.25 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 206.45 PS/tonne (1000 kg) 0.21 PS/kg 151.84 kW/tonne (1000 kg) 0.15 kW/kg 203.62 bhp/tonne (1000 kg) 0.2 bhp/kg 0.09 bhp/lb |
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| Weight-to-power ratio | Lower is better 6.59 kg/kW 11 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 | 5.600 | ||
| Turning circle | |||
| Front suspension | I.CS.ARB. | ||
| Rear suspension | LA.CS.ARB. | ||
| Wheel size front | 7.00 x 15 | ||
| Wheel size rear | 7.00 x 15 | ||
| Tyres front | G60-15 | ||
| Tyres rear | G60-15 | ||
| Brakes F/R | VeDi/Dr-S | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 229 mm | ||
| Braked area | 2084 cm2 | ||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.64 | ||
| general | |||
| Carfolio.com ID | 140415 | ||
| Production total | |||
| Model code | |||
| RAC rating | 59.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1970 Buick GSX 455 Stage I added 2006-05-31. Last modified 2013-02-28. |
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