Duramax V8 engine
The Duramax V8 engine is a family of 6.6 liter diesel V8 engines produced by DMAX, a wholly owned subsidiary of General Motors in Moraine, Ohio. The Duramax block and heads are supplied from reliable vendors of General Motors. This engine was initially installed in 2001 Chevrolet and GMC trucks, and has since become an option in pickups, vans, and medium-duty trucks. In 2006, production at Moraine was reportedly limited to approximately 200,000 engines per year. On May 9, 2007, DMAX announced the production of the 1,000,000th Duramax V8 at its Moraine facility, followed by the 2,000,000th on March 24, 2017.
| Duramax Diesel engine | |
|---|---|
Duramax LML | |
| Overview | |
| Manufacturer | DMAX Ltd. |
| Production | 2001 – present |
| Layout | |
| Configuration | 90° V8 |
| Displacement | 6.6 L; 402.7 cu in (6,599 cc) |
| Cylinder bore | 4.06 in (103 mm) |
| Piston stroke | 3.90 in (99 mm) |
| Cylinder block material | Cast gray iron |
| Cylinder head material | Aluminum |
| Valvetrain | OHV 4 valves x cyl. |
| Valvetrain drive system | Gears |
| Compression ratio | 16.8:1, 17.5:1 |
| Combustion | |
| Turbocharger | Garrett variable-geometry vane with intercooler |
| Fuel system | High-pressure common-rail direct injection |
| Management | Bosch |
| Fuel type | Diesel |
| Cooling system | Water-cooled |
| Output | |
| Power output | 250–550 hp (186–410 kW) |
| Torque output | 460–1,050 lb⋅ft (624–1,424 N⋅m) |
| Emissions | |
| Emissions target standard | EPA |
| Emissions control systems | Oxidizing catalyst, DPF, EGR |
| Chronology | |
| Predecessor | 6.2 and 6.5 L Detroit Diesel |
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