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Thread: LS3 TO LS7 SWAP. What is needed?

  1. #1
    Potential Tuner
    Join Date
    Apr 2022
    Posts
    8

    LS3 TO LS7 SWAP. What is needed?

    5th gen Camaro swapped w/LS7.

    I have an LS7 MAP sensor for the MSD intake and I have an LS3 card style MAF which I believe is the same as the LS7 MAF?

    What is physically needed for connections? Will the LS3 harness require any adapter to the LS7 MAP?

    Similarly what is needed for the LS3 MAF sensor or can the tune be adjusted?

    What is required to be adjusted to account for the LS7 MAP to LS3 Harness?

  2. #2
    Senior Tuner
    Join Date
    Nov 2006
    Location
    North Carolina
    Posts
    4,831
    Just update the map sensor scalar and offset for the map sensor you are using.

    Some early LS7's used a different map sensor but by around 2008 they started using the same type that was used in all LS3 camaros.

    The MAF is the same.
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