Do you guys know if the 2005 xl Denali came with the 80e? Looking at purchasing 2005 Yukon xl Denali. I have a bad a$$ 390 fully built and looking to put a 76mm turbo on it. In your opinion should I stick with trying to find 2500 Suburban with all the beefy stuff on it or do you think the Denali will be ok? I really hope the 05 has an 80e in it, that would help a lot!! Not looking to go crazy hp numbers, settling around the 600hp mark. Another question would a built 4l60 around the 600 mark last?? Thanks!!

 

60 is a nope. Not for the long haul at that power level.

With a 390. You need to go with a large t4 frame turbo. Not your std magnum tnetics smaller frame.

 

Well I found a 2500 Suburban in GA. Trick I will be getting some goodies from you soon. 390ci wants company!