LS7 Throttle Body
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2004-2007 Cadillac CTS-V Performance Mods Discussion, LS7 Throttle Body in Cadillac CTS-V Series Forum - 2004 - 2007; Have any of you LS2 guys looked at doing an LS7 throttle body? They appear to bolt up and have ...
  1. #1
    jpoole's Avatar
    jpoole is offline Cadillac Owners Fanatic
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    LS7 Throttle Body

    Have any of you LS2 guys looked at doing an LS7 throttle body? They appear to bolt up and have better machining. The pics I have seen & what I have heard they have more factory machining and appear to be kinda polished versions.

    Just wondering.

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  3. #2
    03blwn281's Avatar
    03blwn281 is offline Cadillac Owners Fanatic
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    Re: LS7 Throttle Body

    TB's on LS2 and LS7's are identical..

  4. #3
    jpoole's Avatar
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    Re: LS7 Throttle Body

    Quote Originally Posted by 03blwn281 View Post
    TB's on LS2 and LS7's are identical..
    Well, they look different to me, see pics.




  5. #4
    ctsv154's Avatar
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    Re: LS7 Throttle Body

    If its 90mm which both are, just having one shiny wont make a difference. The servo motor looks to be slightly lower than the LS2.

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    Re: LS7 Throttle Body

    Ctsv154, do you get a whistlin noise from your 90mm tb?

  7. #6
    ctsv154's Avatar
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    Re: LS7 Throttle Body

    I did get a slight whistle. I thought I may have had an intake leak but if you have it too maybe not?

  8. #7
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    Re: LS7 Throttle Body

    Quote Originally Posted by ctsv154 View Post
    I did get a slight whistle. I thought I may have had an intake leak but if you have it too maybe not?
    The part number is the same for the LS2 and LS7 throttle bodies.....12570790. The machining difference may be a sourcing issue from a different vendor. Mine was not machined except in the throttle blade area.

    I don't have a whistle but then again, my setup is N/A.

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