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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.
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