The Pontiac Laurentian Hardtop Coupé is a 2 door coupé-bodied road car with a front positioned engine powering the rear wheels.
It's powered courtesy of a naturally aspirated engine of 7.4 litre capacity. This unit features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It has an output of 390 bhp (395 PS/291 kW) of power at 4800 rpm, and maximum torque of 678 N·m (500 lb·ft/69.1 kgm) at 3400 rpm.
The engine drives the wheels compliments of a 3 speed automatic transmission.
Full specs
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Applicable to the Canadian domestic market(s). | ||
| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3023 mm | 119 inches | |
| Track/tread (front) | 1610 mm | 63.4 inches | |
| Track/tread (rear) | 1608 mm | 63.3 inches | |
| Length | 5532 mm | 217.8 inches | |
| Width | 2027 mm | 79.8 inches | |
| Height | 1389 mm | 54.7 inches | |
| Ground clearance | 150 mm | 5.9 inches | |
| length:wheelbase ratio | 1.83 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 90.9 litres | 20 [24] 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 | 7.4 litre 7446 cc (454.383 cu in) |
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| Bore × Stroke | 108 × 101.6 mm
4.25 × 4 in |
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| Bore/stroke ratio | 1.06 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (gross) |
395 PS (390 bhp) (291 kW) at 4800 rpm |
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| maximum torque (gross) |
678 Nm (500 ft·lb) (69.1 kgm) at 3400 rpm |
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| Specific output (gross) |
39.1 kW/litre 53.1 ps/litre 52.4 bhp/litre 0.86 bhp/cu in |
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| Specific torque (gross) |
91.06 Nm/litre
1.1 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 10.25:1 | ||
| Fuel system | 1 carburettor | ||
| bmep (brake mean effective pressure) | 1144.2 kPa (166 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 930.75 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 x 15 | ||
| Wheel size rear | 6 x 15 | ||
| Tyres front | F78 x 15 | ||
| Tyres rear | F78 x 15 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 279 mm | ||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 2.73 | ||
| general | |||
| Carfolio.com ID | 395703 | ||
| Production total | |||
| Model code | |||
| RAC rating | 57.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1970 Pontiac Laurentian Hardtop Coupé added 2015-01-09. Last modified 2020-02-02. |
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