Ok i have been searching for an LS4 throttle body forever and i cannot seem to find any. does anyone know where i might be able to get one? or what it comes on so i can research that? Any info would be greatly appreciated.

 

http://car-part.com/

I guess someone found one for 25$. Check here. You have to have the vehicle and year the LS4 TB orginally came on.

 

3.5L colorado 04 to 05
3.5l envoy 05
4.2L trailblazer 03 to 05
4.2L hummer h3 06
4.2L bravada 03 to 04
4.2L envoy xl 03 to 04
4.2Limpala 06
5.3Lisuzu asender 03 to 05
4.2L grandprix 05 to06
5.3Lenvoyxuv 04 to 05
4.2Ltrailblazer ext 03 to06
4.2Lcanyon 04 to 05
3.5L monte carlo 06
5.3Ltrailblazer 06
4.2L rainier 04 to 05
4.2L saab9-7x 05 to06

 

Thats what i dont know is which ones we can use for our cars?

 

if your gonna do it get the 5.3l tb. its 79mm. thats the tb they call the LS4. tuning for the new tb is a nightmare but its been worked out. i got mine from carparts.com for hella cheap as well... so much for that little secret. haha