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Thread: Ls1 12225074 4l60 to 4l80 conversion

  1. #1
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    Default Ls1 12225074 4l60 to 4l80 conversion

    Hi all, in the ,middle of a trans swap for my shop silverado LS1 turbo, from 4l60 to 4l80. the truck has been run for years with the tune but keeps eating transmissions so i have changed harness to 4l80 and fitted 4l80 trans but cannot find a 4l80 file to do a segment swap on. worst case i guess i will have to hand edit every table across to another file . but im stuggling to find a 12225074 4l80 stock file
    anyone have a ls1 4l80 base file i can swap injector data, ve tables etc across to ?

  2. #2
    Lifetime Member ChipsByAl's Avatar
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    What is that OS from?
    Al
    "Trash that carb and get Injected!"

  3. #3
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    its a holden australian OS . at this point im happy to just get a 4l80 5.7 base file and modify it. unfortunately efi live wont let you swap tables from different OS so will be a whole lot of cut and paste but it what it is.

  4. #4
    Lifetime Member ChipsByAl's Avatar
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    If you don't have any other issues because of an OS swap, you might want to try an OS from the states that has both the 4L60-e and 4L80-e segments available.
    Al
    "Trash that carb and get Injected!"

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