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Throttle body questions

This is a discussion on Throttle body questions within the External Engine forums, part of the LSx Technical Help Section category; I've read (in the book by Will Handzel) that the LQ4/LQ9 throttlebodies are 80mm, and that the ZO6 used an ...

  1. #1

    Throttle body questions

    I've read (in the book by Will Handzel) that the LQ4/LQ9 throttlebodies are 80mm, and that the ZO6 used an 80mm throttlebody. The book this was published in also stated that the cable actuated throttlebodies could be used on an LS1 in an F-body.

    However it seems that no one over here has discussed whether or not this works or if they have actually done it. There have been a few threads where the question has been asked , but no definitive answer.

    It would seem that one of these factory piece could be picked up from a salvage yard or ebay for alot less than the aftermarket offerings. In turn allowing funds to be spent on other parts.

    It would seem that it would be a natural addition to the LS6 intake that most are using. And being a factory part it might not have the binding issues that aftermarket pieces have had.

  2. #2
    Grand Imperial Wizard Sarge's Avatar
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    A 98-99 TB has a brown spring on it and a smaller throttle cam, GM Part# 17113390.

    A 2000-2002 TB has a blue spring on it and it has the biggest throttle cam, GM Part# 17113647.

    A Truck TB has a orange spring on it and a cam that is close to the 98-99 F-body ones but it's not an exact fit.

    In short when looking for swapping throttle bodies from one car to another check the color of the spring.
    Last edited by Sarge; 11-24-2006 at 04:01 AM.
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  3. #3

    Thanks for the info, do you happen to know if the truck Throttlebodies are really 80mm and then could the cam and spring be swapped?

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