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The Hummer H3 is an off-road vehicle that was produced from 2005 to 2010 by General Motors. The smallest model of the Hummer lineup, it was offered as a 5-door SUV or a 4-door pickup truck known as the H3T. Unlike the larger H1 and H2 models, the H3 was not developed by AM General.
Atlas is a name for a family of modern inline piston engines for trucks from General Motors, used in the GMT355 and GMT360 platforms. The series debuted in 2002 with the Oldsmobile Bravada, and is also used in the Buick Rainier, the Chevrolet TrailBlazer and Colorado, the GMC Envoy and Canyon, the Hummer H3, Isuzu Ascender and i-370, and the Saab 9-7X.
In contrast to the Hummer H1–designed and assembled by AM General, the Hummer H2 and Hummer H3 were developed by GM, receiving their own platform designations. Designated the GMT825, the H2 was derived from the GMT820 (Chevrolet Tahoe/GMC Yukon), with its own midsection frame design and a rear frame shared with the 2500-series GMT800 pickup trucks.
At the 2006 SEMA show, GM Performance Parts introduced the LSX engine, an all-new cast-iron racing block based on the LS7 engine. It was designed with help from drag racing legend Warren Johnson . It offers displacements ranging from 364 to 511 cu in (6.0 to 8.4 L) with a bore and stroke of 4 + 1 ⁄ 4 in × 4 + 1 ⁄ 2 in (108.0 mm × 114.3 mm ...
GMC filed a preliminary report to the EPA revealing crucial specs for its new electric pickup, including 329-mile range, 47 MPGe combined efficiency, and a 9063-pound curb weight.
The GMT560 engine output was 300 hp (220 kW) and 520 lb⋅ft (705 N⋅m) of torque. The engine was equipped with cooled exhaust gas recirculation and an internal engine oil cooler, thus, requiring a 40% heat rejection increase to engine coolant. Because space was limited between the air-lift brackets that protruded from the hood, the fan system ...
The LLT engine has a compression ratio of 11.3:1, and has been certified by the SAE to produce 302 hp (225 kW; 306 PS) at 6300 rpm and 272 lb⋅ft (369 N⋅m) of torque at 5200 rpm on regular unleaded (87 octane) gasoline. This engine debuted on the 2008 Cadillac STS and CTS.
Hummer H1, H2, and H3. The H1 is a civilian derivative of the HMMWV, while the H2 and H3 are based on regular GM truck chassis and styled after it. Humvee clone manufacturing in China; Humvee replacement process; Interim Fast Attack Vehicle; List of "M" series military vehicles; Sandstorm, an HMMWV modified into an autonomous vehicle.