This article is about the Duramax V8. For the Duramax 6-cylinder, see Isuzu 6H engine.
Reciprocating internal combustion 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]
^ ab"6.6L V-8 L5P Features & Specifications". GM Powered Solutions. Retrieved May 14, 2023.
^ ab"GM celebrates one-millionth Duramax diesel". Archived from the original on May 14, 2007. Retrieved May 9, 2007.
^"2 Millionth Duramax Diesel Engine Rolls off the Line". 24 March 2017.
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