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Thread: 4.8 to 5.3 qestions

  1. #1
    Join Date
    Nov 2008
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    4.8 to 5.3 qestions

    my motor keeps throw knock sensor codes and my transmission is pretty much on its last leg. well, im buying a 5.3 for my truck and wanted to make sure that the connectors are the same on both motors and that the computer wiring harnesses are the same.

  2. #2
    Join Date
    Nov 2003
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    Denton Texas
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    exactly the same stuff. You may have to swap intakes and oil pressure sensor if its different.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
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    why would i have to swap intakes if im buying a complete motor?

  4. #4
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    If you have one that is DBW and the old one was DBC you'd have to swap them because one isn't interchangable with the other due to lack of bolt holes or vacuum ports. Compare the two closely.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #5
    Join Date
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    College Station, TX
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    If its 99-02 its DBC and 03+ is DBW, if the new motor is in the same year range as your current old motor above It will be the same.
    2012 F-250 XLT/FX4 RCLB 6.7 Powerstroke
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  6. #6
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    its newer so i dont see having a problem, thank you for ur answers.

  7. #7
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    Pittsburgh, PA
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    Quote Originally Posted by Aggie View Post
    If its 99-02 its DBC and 03+ is DBW, if the new motor is in the same year range as your current old motor above It will be the same.
    not completely true. the Burbans/hoes and its cousins some came with GBW
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  8. #8
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    i'll let you know tomorrow what its coming out of. its either gonna be out of a 04 avy or a 05 silvy.

  9. #9
    Join Date
    Nov 2007
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    just use your sensors and intake
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

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