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Thread: 4.3 to 5.7 swap

  1. #1
    Potential Tuner
    Join Date
    Feb 2018
    Posts
    9

    4.3 to 5.7 swap

    Looking for a stock tune file and some advice for tuning the stock ecm to run the 5.7. It has the stock 4l60 trans. Can someone tell me the process for this?
    Thanks, Justin

  2. #2
    Is it a 411 PCM? If so I have a tune for the 5.7

  3. #3
    Potential Tuner
    Join Date
    Feb 2018
    Posts
    9
    Quote Originally Posted by DiceDaLova View Post
    Is it a 411 PCM? If so I have a tune for the 5.7
    I ended up flashing it with a stock file from gm to make it run so he can finish up the rest of the work. Thanks for responding