Early in the history of Duramax engines, GM changed the LB7 series of engines to LLY, but it can be difficult to tell them apart. Here’s how.

The LB7 was also the last Duramax not to run a diesel particulate filter (DPF), an emissions-reducing technology that has the unfortunate side-effect of reducing fuel economy.

The LB7 is otherwise a very reliable engine. As such, many owners will go through the hassle of replacing some or all of the injectors in their '01-to-'04 and 1/2 Duramax oil-burners with the idea ...

Fleece builds Cheetahs for ’94-to-current Cummins, ’01-to-’10 Duramax, and ’03-to-’07 Power Stroke engines. See All 34 Photos The process of unleashing a Cheetah begins with disassembly ...

Duramax LB7 V-8-powered G-Body 1978 Chevy Malibu was one of the coolest work-in-progress drag cars at Florida Truck Jam. KJ Jones Writer, Photographer Apr 22, 2024.

If you want to figure out which of these Duramax variants is under the hood of your early-2000s GM truck, the easiest way to do so is by verifying the vehicle's model year, with the LB7 utilized ...