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Thread: Hello

  1. #1
    Carb and Points!
    Join Date
    Jun 2020
    Location
    Finland
    Posts
    2

    Hello

    My project, 1989 gmc sierra 454 engine swap with 4l80e.

  2. #2
    Administrator
    Join Date
    May 2011
    Location
    Lakes Region, NH
    Age
    54
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    3,847
    Welcome. Are you installing a TBI or PFI version of the 454?

  3. #3
    Carb and Points!
    Join Date
    Jun 2020
    Location
    Finland
    Posts
    2
    This time i think i choose easy way, holley sniper and hyper spark. I thin wrong because i still have stock transmission controller and no idea how transmission work with sniper

  4. #4
    Administrator
    Join Date
    May 2011
    Location
    Lakes Region, NH
    Age
    54
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    3,847
    Sniper won't talk with stock transmission controller. The transmission controller needs to know the engine is running in order to control the transmission.

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