which built its first engine in 1919 — the Duramax had technology on its side, at least when the 6.6-liter LB7 debuted in 2001. Born out of a collaboration between GM and Isuzu, the 2001 Duramax ...

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 ...