The Buick Le Sabre Custom Coupé is a coupé with 2 doors and a front mounted powerplant which transmits its power through the rear wheels.
It forms part of Buick's 4B family of cars.
Power is supplied by an overhead valve, 4.9 litre naturally aspirated 8 cylinder engine, with 2 valves per cylinder that produces power and torque figures of 140 bhp (142 PS/104 kW) at 3600 rpm and 319 N·m (235 lb·ft/32.5 kgm) at 2000 rpm respectively.
The engine powers the wheels by means of a 3 speed automatic transmission.
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 | 2944 mm | 115.9 inches | |
| Track/tread (front) | 1570 mm | 61.8 inches | |
| Track/tread (rear) | 1542 mm | 60.7 inches | |
| Length | 5542 mm | 218.2 inches | |
| Width | 1961 mm | 77.2 inches | |
| Height | 1397 mm | 55 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.88 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 79.5 litres | 17.5 [21] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | GM | ||
| Engine code | L27 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 4.9 litre 4942 cc (301.579 cu in) |
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| Bore × Stroke | 101.6 × 76.2 mm
4 × 3 in |
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| Bore/stroke ratio | 1.33 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (net) |
142 PS (140 bhp) (104 kW) at 3600 rpm |
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| maximum torque (net) |
319 Nm (235 ft·lb) (32.5 kgm) at 2000 rpm |
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| Specific output (net) |
21.1 kW/litre 28.7 ps/litre 28.3 bhp/litre 0.46 bhp/cu in |
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| Specific torque (net) |
64.55 Nm/litre
0.78 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 8.2:1 | ||
| Fuel system | 1 Rochester carburettor | ||
| bmep (brake mean effective pressure) | 811.1 kPa (117.6 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 617.75 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| 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 x 15 | ||
| Wheel size rear | 6 x 15 | ||
| Tyres front | FR78-15 | ||
| Tyres rear | FR78-15 | ||
| Brakes F/R | VeDi/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 2.41 | ||
| general | |||
| Carfolio.com ID | 717761 | ||
| Production total | |||
| Model code | P37 | ||
| Model family | 4B | ||
| RAC rating | 51.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1978 Buick Le Sabre Custom Coupé added 2021-01-13. Last modified 2021-01-13. |
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