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LS1 LQ4/9 Interchangability?

This is a discussion on LS1 LQ4/9 Interchangability? within the Internal Engine forums, part of the LSx Technical Help Section category; I am thinking about swapping a LQ4/9 for my LS1. Weight is not an issue, I am looking to make ...

  1. #1
    Junior Member
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    LS1 LQ4/9 Interchangability?

    I am thinking about swapping a LQ4/9 for my LS1.

    Weight is not an issue, I am looking to make it into a 434ci.

    I am wondering if the accessory brackets & drives timing chains etc will swap between the blocks.

    Thanks
    Craig

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
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    Sounds like a lot of stroke....


    But yes, everything is interchangeable. Just need to drill a hole for the alternator.

  3. #3
    cutting and welding mark21742's Avatar
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    hugger orange
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    I've been told people drill the extra hole for the altenator, but I didn't even do that on my GTO when I did the swap...but the bracets might be slightly different from the GTO to the F-body.

    Also I've heard there is a year lq4/9 block that has a different tail on the crank....maybe someone can jump in and tell you.

    I will say the difference from my ls1 to my 408 was night and day and you will love it!

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