the 2006 LBZ Duramax was the most reliable, efficient, and best-performing turbo diesel engine that GM created to that point. Despite being one of the most popular turbo diesel engines in history ...
To help you make an informed decision, we've explored the best years for the 6.6 Duramax ... Introduced in 2006 to replace the LLY Duramax engine, the LBZ, which could produce up to 360 hp and ...