The Duramax diesel engine has seen quite a few changes over the years. Here's what separates some of the most popular ...

Although the LBZ Duramax (produced from ’06 to ’07) has earned a reputation for making easy horsepower in the diesel industry, it’s also known for its one Achilles’ heel: cracking pistons. Once ...

Last month, the most extensive modification to date was performed on our ’06 GMC Sierra 2500HD—fortifying the Allison transmission with Sun Coast parts. This month, we put the built Allison to work ...

This season's most-powerful light-truck engine is General Motors' 2006 Duramax LBZ diesel available in the Chevy Silverado/GMC Sierra 2500 and 3500 Series pickups. The V8 diesel delivers 360 ...