The 6.6 Duramax is the senior of the two, debuting for the 2001 model year. According to MotorTrend, it was the first U.S. market diesel engine to use a "high-pressure common-rail, direct ...

These days, the Duramax namesake is as linked with turbo diesel engines ... rail fuel system and high-pressure fuel injectors were a source of issue for the older LLY engine, the system was ...

That decision has only gotten harder in recent years, with both GM's new 6.6 and Ford's "Godzilla" 7.3-liter rolling out for ...

General Motors’ 6.6-liter Duramax LB7 was a state-of-the-art V8 diesel engine with four ... Features like a graphite iron engine block and a high-pressure direct injection fuel system known ...

Standard models will start from $27,965, while those wanting the Duramax diesel and ... a fully-boxed, high-strength steel frame combines with the aforementioned engine improvements to increase ...