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LS3 Heads

This is a discussion on LS3 Heads within the Internal Engine forums, part of the LSx Technical Help Section category; I didn't see this posted anywhere but might just have missed it. Will the LS3 heads fit on a stock ...

  1. #1
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    LS3 Heads

    I didn't see this posted anywhere but might just have missed it.

    Will the LS3 heads fit on a stock LS1? Or would you suggest going with AFR, LS7, or something else?

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    Member c5z28's Avatar
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    The ls-3 is made for a bigger bore so no they won't fit, l-92 heads will fit though.

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    Quote Originally Posted by c5z28 View Post
    The ls-3 is made for a bigger bore so no they won't fit, l-92 heads will fit though.
    L92 L76 and LS3 use the same castings.

    None of them will work on an bore smaller then 4.00" so using them on an LS1 is out of the question.
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