mine is 2007 envoy denali ,

1GKET63M772112960

 

87mm if it is a 4 bolt TB. LS7 is 90mm.

 

the diffrence is 3mm , is it worth it ??

 

Maybe not on a blow-through application, but there are some other differences. The truck style TB is 87mm only at the widest points on the flange, or at its center.

 

thanks man

nice pic , show that 90mm more round , i will buy it to day , hope to get some hp after it , do you think it will need tune , for idle

 

I think the idle learning will take care of any small differences. No tune required.

 

thanks man
ii will let you after i install it

 

What is the main difference between the LS7 and an LS2 tb?

 

LS7, LS2, L76, LS3, L76 and L98 90mm are all the same part.

 

hi guys ,

i installed the tb today , and started the engine , normal idle , but when i apply the padel , th rpms goes at 2000 and stay no matter what it will not come down if i apply again , it will go to 3000 and stay

and idea how to fix this