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2006-2007 Duramax 6.6 LBZ

The 3rd generation of the Duramax diesel engine was released in 2006 and was used until 2007 in the classic body style GMC and Chevy HD pickups.  This generation was named the LBZ.

The LBZ engine is similar to the LLY mechanically but the horsepower was raised to 360 at 3,200 RPM.