How To Tell If A Duramax Engine Is An LB7 Or LLY
The powerful V8 engines did so bearing the name LB7, and yes, they were eventually replaced by Duramax builds branded LLY.
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 ...