The powerful V8 engines did so bearing the name LB7, and yes, they were eventually replaced by Duramax builds branded LLY.

Diesel pickups are rugged, powerful, and built to last, enduring hundreds of thousands of miles. Here are 10 dependable ...

General Motors’ 6.6-liter Duramax LB7 was a state-of-the-art V8 diesel engine with four-valves-per-cylinder producing 235 to 300 hp and 500 to 520 lb-ft of torque. In addition to a turbocharger ...