Another 4.7 to 5.7 swap

Discussion in 'Engine & Performance' started by Madoyster2003, Oct 19, 2017.

  1. Madoyster2003

    Madoyster2003 Junior Member

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    Good morning Dodge gods. I'm having quite a bit of trouble with my Swap and I was wondering if y'all could lend me a hand. I'm going from a 2003 Dodge Ram quad cab SLT with power pedals Infinity system I believe it's the sport package. Like everyone else I'm having trouble with the wiring harness. I've got the BKK throttle body cable Style already. I'll post pictures of everything that I have I'm just tired of buying harnesses and ecu's internal and external fuse boxes only to see that none of them match up. I understand that there's five thousand different wiring harnesses so any and all help would be greatly appreciated.
     
  2. chrisp2493

    chrisp2493 Senior Member

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    So you are actually in the middle of the swap or still getting started?
     
  3. Madoyster2003

    Madoyster2003 Junior Member

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    I'm right in tge middle. I have the 4.7 out left the trans in and am currently prepping the 5.7 to go in
     
  4. chrisp2493

    chrisp2493 Senior Member

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    Good for you, hope it works out all right there has been a lot of these threads popping up lately with people thinking about it, glad to see someone actually going for it. I wish I could help you out but it’s outta my league
     
  5. Madoyster2003

    Madoyster2003 Junior Member

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    At this point in time even the pinouts would help. I bought the 04 engine harness with the ecm thinking thwy would match up to the plug that goes into the cab( big square one that bolts together with a single bolt.
     
  6. chrisp2493

    chrisp2493 Senior Member

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  7. chrisp2493

    chrisp2493 Senior Member

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    If you wanted an actual book you can buy the service manuals or maybe your local library might have them if you’re lucky
     
  8. DRKSTR088

    DRKSTR088 Junior Member

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    Engine:
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    well fuck someone told me that they should just match up, now im glad i saw this so i can do more research on how to get that wiring harness to hookup
     
  9. Madoyster2003

    Madoyster2003 Junior Member

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    i found out that the big plug is called the c130 plug. i read that its only on the 03' 5.7 and 4.7
     
  10. Madoyster2003

    Madoyster2003 Junior Member

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    So crazy things have happened since my last post. To the 5.7 all the way down. Turns out that passenger side head dropped a valve. Being demoralized I went out and bought a scat 392 stroker kit and a diablo t1000 tuner. I found replacement 6.1 heads and a 6.4 manifold but I'm still thinking about Meadowbrook headers. Yes ill be getting a msd box for that. Working on pacesetters long tube headers and compcam xfi cam. I'm still working on the harness. End game for this engine is to be remote mount turbod and 800hp.
     

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