A motor that replaced the GM and Detroit Diesel-built 6.2L and 6.5L motors. The first was the LB7, then the LLY, then the LBZ and as of 2007(.5), the clean-diesel LMM. The truck currently, and for two years, produces over 360 HP and 650 LB. FT. and has solidly becoming a sucessful and reliable motor. DMAX Ltd. in Moraine, OH recently produced it's one-millionth engine.
by dmax6600 August 27, 2007
Chevy's most kick as truck, the durmax diesel engine (made by Isuzu) makes fords and dodges look like junk they really are.
by umm yeeee November 02, 2009
refers to the greatest tampon when it comes to trucks. ford powerjoke, chevy duramax. not considered as bad as the powerstroke but second worst in diesel engines. drive a cummins.
by cummins man January 25, 2009