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Best Duramax Engines
The LB7 was in production until the start of 2004, when it was replaced by the LLY. The second Duramax engine, the LLY, first arrived on the market in mid-2004, with an increase in both power ...
Here Are The Best Years For The 6.6 Duramax Engine (And The Ones You Should Avoid)
Read more: How To Clean Your Car's Engine Bay: A Step-By-Step Guide Introduced in 2006 to replace the LLY Duramax engine, the ...