When did the LBZ engine replace the LLY?
When did the LBZ engine replace the LLY? Huge changes to the LLY debuted in 2005, but the engines were mechanically identical. LBZs were used from 2006-2007. Ways to identify this engine: The LBZ replaced the LLY late in the 2006 model year and production continued through 2007. When did the Duramax LB7 V8 come out? Ways to identify this engine: The LB7 Duramax was first introduced in 2001 and produced until 2004. The 32 valve, V8 design utilizes a high pressure common rail direct injection system. How to identify a Duramax engine by VIN number? Duramax Engine ID by...