Isuzu 6H engine
The Isuzu 6H is a family of inline-6 cylinder Diesel engine installed in Isuzu medium duty trucks, and also installed in GM medium-duty trucks as the Duramax LG4. It is mated to the Allison 2500, 3000 and 3500 Series transmissions.
| Isuzu 6H Engine | |
|---|---|
| Overview | |
| Manufacturer | Isuzu and General Motors |
| Layout | |
| Configuration | Inline-6 |
| Displacement | 7.1–8.2 L; 434.9–502.0 cu in (7,127–8,226 cc) |
| Cylinder bore | 115 mm (4.53 in) |
| Piston stroke | 125 mm (4.92 in) |
| Cylinder block material | Gray iron |
| Cylinder head material | Cast iron |
| Valvetrain | SOHC 4 valves x cyl. |
| Compression ratio | 17.5:1, 17.0:1 for 300 hp (224 kW) |
| Combustion | |
| Turbocharger | With Intercooler |
| Fuel system | High-pressure common-rail direct injection |
| Fuel type | Diesel |
| Cooling system | Water-cooled |
| Output | |
| Power output | 165–300 PS (121–221 kW) |
| Torque output | 520–860 lb⋅ft (705–1,166 N⋅m) |
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