The Pontiac Executive Hardtop 428 H.O. is a rear wheel drive automobile, with its motor located in the front, and a 4 door saloon (sedan) bodyshell.
The Executive Hardtop 428 H.O. is part of Pontiac's 256 model series.
Its engine is a naturally aspirated petrol, 7 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. This unit develops 390 bhp (395 PS/291 kW) of power at 5200 rpm, and maximum torque of 630 N·m (465 lb·ft/64.2 kgm) at 3400 rpm.
The power is transmitted to the wheels by means of a 4 speed manual transmission.
Full specs
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| Carrocería | |||
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| Carrocería | 4/5 seater sedan/saloon | ||
| Número de puertas | 4 | ||
| diseñado por | |||
| Dimensiones y pesos | |||
| Distancia entre ejes | 3150 | 124 | |
| Vía delantera | 1600 | 63 | |
| Vía trasera | 1626 | 64 | |
| Longitud | 5677 | 223.5 | |
| Ancho | 2027 | 79.8 | |
| Altura | 1367 | 53.8 | |
| Despeje del suelo | |||
| Relación Largo:Dist.entre ejes | 1.8 | ||
| Peso en vacío | |||
| Distribución del peso (% adelante) | |||
| Capacità serbatoio | |||
| Aerodinámica | |||
| Coeficiente de penetración | |||
| Superficie frontal | |||
| SCx | |||
| Tren motriz | |||
| naturally aspirated petrol | |||
| Fabricante del motor | Pontiac | ||
| Código de motor | |||
| Número de cilindros | V 8 in 90° vee | ||
| Cilindrada | 7 litre 6991 cc (426.617 cu in) |
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| Diámetro × Carrera | 104.65 × 101.6 mm
4.12 × 4 in |
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| Relación diámetro/carrera | 1.03 | ||
| Distribución | overhead valve (OHV)
2 válvulas por cilindro 16 Total de válvulas |
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| Potencia nominal (gross) |
395 PS (390 bhp) (291 kW) a 5200 rpm |
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| Par motor máximo (gross) |
630 Nm (465 ft·lb) (64.2 kgm) a 3400 rpm |
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| Potencia específica (gross) |
41.6 kW/litre 56.6 ps/litre 55.8 bhp/litre 0.91 bhp/cu in |
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(gross) |
90.12 Nm/litre
1.09 ft·lb/cu3 |
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| Materiales de block / culata | |||
| Lubricación | Cárter húmedo | ||
| Relación de compresión | 10.5:1 | ||
| Alimentación | 1 carburettor | ||
| 1132.4 kPa (164.2 psi) | |||
| Maximum RPM | |||
| Casquillos de cigüeñal | 5 | ||
| Engine coolant | Water | ||
| 873.88 cc | |||
| Aspiración | Normal | ||
| Compresor | N/A | ||
| intercooler | None | ||
| catalizador | N | ||
| Rendimiento | |||
| 0-80km/h | |||
| 0-60mph | |||
| 0-100km/h | |||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Velocidad máxima | |||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| Consumos | |||
| Consumo de combustible | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Emisiones de CO2 | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| Chasis | |||
| Ubicación del motor | front | ||
| Engine layout | longitudinal | ||
| Tracción | rear wheel drive | ||
| Alimentación | N/A | ||
| Dirección, tipo | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Suspensión delantera | |||
| Suspensión trasera | |||
| Ruedas delante | 6JK x 14 | ||
| Ruedas detrás | 6JK x 14 | ||
| Neumáticos delante | 8.55 x 14 | ||
| Neumáticos detrás | 8.55 x 14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 279 mm | ||
| Braked area | |||
| Transmisión | 4 speed manual | ||
| Eje trasero desmultiplicación | 1 | ||
| Desmultiplicación grupo cónico | 3.42 | ||
| General | |||
| Carfolio.com ID | 344311 | ||
| Unidades producidas | |||
| Model code | 25639 | ||
| 256 | |||
| RAC rating | 54.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1968 Pontiac Executive Hardtop 428 H.O. added 2013-07-15. Last modified 2020-06-10. |
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