Duramax V8 engine

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)[1]
Piston stroke	3.90 in (99 mm)[1]
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

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.^[vague] 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.^[2] On May 9, 2007, DMAX announced the production of the 1,000,000th Duramax V8 at its Moraine facility,^[2] followed by the 2,000,000th on March 24, 2017.^[3]