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How much horsepower does a Chevy Duramax have?

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The 2015 Chevrolet Duramax diesel engine has a 397 horsepower engine. The model had its debut in 2000 and produced 300 horsepower at that time.

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The Chevrolet Duramax is the optional diesel engine specification for the Chevy Silverado pickup truck. The company partnered with Isuzu in the late 1990s to develop the Duramax and offered it for the first time in 2000 as the LB version. By 2004, the LLY version offered 310 horsepower, which was increased to 360 in the 2006 LBZ. Since 2010, the LML has been the standard and produces 397 horsepower. A less powerful version, offering 260 horsepower, became available in 2011. The current version is a 6.6-liter turbo-diesel V8 engine that generates 765 lb-ft of torque at 1,600 revolutions per minute and requires an Allison 1000 6-speed automatic transmission.

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