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93 silverado

This is a discussion on 93 silverado within the LSx Retrofit and Swap forums, part of the LSx Technical Help Section category; I am about to put a 5.3 into my 93. My 93 came with a 4l60e, does anybody know if ...

  1. #1
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    white
    1993 1500

    93 silverado

    I am about to put a 5.3 into my 93. My 93 came with a 4l60e, does anybody know if I need an adapter or a different flexplate.

  2. #2
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    white
    1993 1500

    About to start, anybody know what parts I will need to do my swap
    93 1500 with a 350 tbi and 4l60
    Swapping just the engine to a 5.3 keeping stock tranny

  3. #3
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    Quote Originally Posted by teog052487 View Post
    I am about to put a 5.3 into my 93. My 93 came with a 4l60e, does anybody know if I need an adapter or a different flexplate.
    The 4L60E Trans that is used for LS style engines is known as the 300mm style, the main differences are the bell housing, input drum, Torque Converter and pump stator length. Beginning in 1996-1998 GM went over to a 2 piece style case depending on the model of vehicle it was used in, but the 2 piece case was used for both the 298mm and 300mm style of 4L60E transmissions.
    As long as you can get it to bolt up and get the torque converter to line up properly then you should have no problem getting it to bolt up. You cannot use the stock PCM from the 5.3L Motor to control the 1993 4L60E and they are different.
    I would recommend getting a 300mm 4L60E and controlling both the Engine and Transmission with the same PCM for optimal performance since the were originally tuned as a pair, getting the correct shift points and power band.

    If you have any questions MSG ME
    Brett

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