Duramax Diesel Engines Comparisons and Specifications

When you choose Silverado HD, you can expect legendary capability. In fact, make that legendary dependability and durability too. Because when your truck comes from the family of the most dependable, longest-lasting full-size pickups on the road†, you can bet it works as hard as you do. - Chevrolet

The Duramax V8 engine is a General Motors Diesel V8 engine family for trucks. The 6.6-liter Duramax is produced by DMAX, a joint venture between GM and Isuzu in Moraine, Ohio. The Duramax block and heads are poured at The Defiance GM Powertrain foundry in Defiance County, Ohio. This engine was initially installed in 2001 Chevrolet and GMC trucks, and has been an option since then in pickups, vans, and medium-duty trucks.
Source: https://en.wikipedia.org/wiki/Duramax_V8_engine
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​In the chart below, you will find the basic specifications and data for the Duramax engines used in Chevy trucks from the year 2001 to the current year. Although there were only 7 different types of base Duramax engines used in Chevys over the years, many of the separate listings take account for the different optimizations that General Motors and Chevy did to increase both the durability, power, and torque of these engines. For more specific information on these engines and a list of the trucks they were paired with, click on the name of the engine on the left side of the table. Since the different Duramax engines possess the same cylinder arrangement (V8) displacement (6.6L) and the same amount of valves (32 Valve), each engine in the chart will be referred to by their names (i.e. LB7, LLY, etc.)

Duramax LB7 V8 Turbodiesel Engine

Duramax LLY V8 Turbodiesel Engine

Duramax LBZ V8 Turbodiesel Engine

Duramax LMM V8 Turbodiesel Engine

Duramax LML V8 Turbodiesel Engine

Duramax L5P V8 Turbodiesel Engine

Duramax Engines used in Chevy Trucks

Engine Specs / Year	Power (HP)	Torque (lb-ft)	Max RPM	Weight	Bore x Stroke
LB7 (2001-2004)	235 HP @ 2,700 RPM (2001-2003) 300 HP @ 3,100 RPM (2004)	500 lb-ft @ 1,600 RPM (2001-2003) 520 lb-ft @ 1,800 RPM (2004)	3,250 RPM	835 lbs.	4.055" x 3.897"
LLY (2004.5-2005)	310 HP @ 3,000 RPM (both)	520 lb-ft @ 1,600 RPM (2004-2005) 605 lb-ft @ 1,600 rpm (2006)	3,250 RPM	835 lbs.	4.055" x 3.897"
​LBZ (2006-2007)	360 HP @ 3,200 RPM	650 lb-ft @ 1,600 RPM	3,250 RPM	835 lbs.	4.055" x 3.897"
​LMM (2008-2010)	365 HP @ 3,100 RPM	660 lb-ft @ 1,800 RPM	3,450 RPM	835 lbs.	4.055" x 3.897"
LML (2011-2016)	397 HP @ 3,000 RPM	765 lb-ft @ 1,600 RPM	3,000 RPM	835 lbs.	4.055" x 3.897"
​LGH (2011-2016)	335 hp @ 3,100 RPM	685 lb-ft @ 1,600 RPM	3,450 RPM	835 lbs.	4.055" x 3.897"
L5P (2017-Present)	445 HP @ 2,800 RPM	910 lb-ft @ 1,600 RPM	3,450 RPM	835 lbs.	4.055" x 3.897"

For more information on Duramax engines, please visit chevrolet.com

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