Hummer H2 Engines by Year

The H2 was GM's road-going Hummer, built on a heavy-duty GM truck chassis for 2003–2009, with an SUT pickup from 2005. It used the 6.0 Vortec V8 and, from 2008, the 6.2. The H3 has its own page.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

H2 (2003–2009): 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009

H2 (2003–2009)

The 6.0 V8, then the 6.2 V8.

2003 H2 engines

Engine	Rated	Offered in
6.0L / 364 V8 (LQ4)	316 hp net	H2 SUV (base, Adventure, Luxury)

2004 H2 engines

Engine	Rated	Offered in
6.0L / 364 V8 (LQ4)	316 hp net	H2 SUV (base, Adventure, Luxury)

2005 H2 engines

Engine	Rated	Offered in
6.0L / 364 V8 (LQ4)	325 hp net	H2 SUV, H2 SUT (from 2005)

2006 H2 engines

Engine	Rated	Offered in
6.0L / 364 V8 (LQ4)	325 hp net	H2 SUV, H2 SUT (from 2005)

2007 H2 engines

Engine	Rated	Offered in
6.0L / 364 V8 (LQ4)	325 hp net	H2 SUV, H2 SUT (from 2005)

2008 H2 engines

Engine	Rated	Offered in
6.2L / 376 V8 (L92)	393 hp net	H2 SUV, H2 SUT (from 2005)

2009 H2 engines

Engine	Rated	Offered in
6.2L / 376 V8 (L92)	393 hp net	H2 SUV, H2 SUT (from 2005)

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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