Does anybody have any information on replacing the 78mm tb with a 90mm.
My truck is a 2003 and the plugs are different on the two tb's. There is also a different number of pins in the two plugs. Six on the ls2 and eight on the existing. Any info will help greatly.

 

what other mods do you have to support this TB? what intake manifold do you have? any other mods besides boltons?

i dont know the answer to your questions but unless you have extensive mods and a 90mm inlet on your manifold, you dont need it

 

I am running a 427 with l92 heads and truck intake.

 

youll need a ssr intake or you can convert to a car style or vic jr. pm drx for a harness adaptor .

 

I don't believe that it'll work on the regular truck intake. It has to be an intake off of a SSR/TBSS that already has an opening big enough for the 90mm tb.

 

Sorry i didn't clarify earlier. The intake is a truck intake from a 2007 escalade which has the large opening.

 

you need to either get a harness from speartech for the 6pin to 8pin and a 2002 tac module and some guys have got the harness from drx.

 

Dr X harness is the way I have gone, much easier than the Speartec/TAC module way IMHO.

 

Sounds good. I talked to DrX and he was a lot of help. Probably going that route.

 

Who is DRX?