LB7 vs LLY

[Richard Pelletier]

Can anyone explain the differance in the LB7 and the LLY? Thanks

[FlyRod]

There is a big difference in the two engines. There is good information on this site on the 6600 Duramax section. The biggest difference is that the injectors were moved outside of the valve covers.

[More Power]

Have you seen this article on the LLY (http://www.thedieselpage.com/duramax/lly2004.htm)?

MP