How to swap a 5.4 into your mustang.

Discussion in 'DIY Tech Guides' started by Kuro!, Aug 22, 2010.

  1. dream07

    dream07 forum member

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    Weatherman, no I have never had it to a dyno. I am not really a "number" guy. I like the way it runs and sounds, so I am happy with it as it sits. With 11.7 to 1 compression and the 2001 Cobra cams, I am very happy. It is for show, cruising, etc, and I am currently building a track-only 2005 with a 460-based engine to beat on.

    VolDead08, the engine harness is basically plug and play to the engine for what I did (meaning that I put the alternator in the 4.6 GT location and used GT battery harness and alternator charge cable). I did have to lengthen the wire for the water temp 6" and change the back-up light plug at the trans to a GT plug (I used the GT 5speed). Most of my problems came from the Yella Terra upper. If I had to do it again, I would just make another sheet-fabbed upper or the FRPP 5.0 Coyote Cobra Jet plastic intake.

    Everything else was simply a matter of using the GT500-spec sensor/part to plug the harness connector into. I was shocked by how many of the V6 sensors are the same as the GT and GT500, which saves money too.
     
    Last edited: Jan 25, 2014
  2. VolDead08

    VolDead08 Mustang Addict

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    Do you happen to have a write up of your swap, or are you planning on doing a write up? I see some people with the 5.4L 4V but I hardly find any information or swap write ups online.
     
  3. dream07

    dream07 forum member

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    I was planning on doing a complete and formal writeup, but life got in the way. I can tell you that Ford has made it very easy to do this swap (compared to Fox or sn95 bodies) as long as you use the same year harness and pcm that matches your body year. The 05-06 Mustangs have wiring changes and the 2010+ is a lot different (gauge cluster mess).

    Basically, if you have an 07-09 Mustang (v6 or GT) and a 07-09 GT500 engine, GT500 engine harness, GT500 starter/battery harness and a 07-09 GT500 pcm, you can plug everything in and go. As long as you understand what is similar and what is different between the v6, GT and GT500, you can save a lot. My v6 gauges work! Since I don't have a 400+hp engine, I am still running the v6 fuel pump. Using a non-GT500 5.4 DOHC engine requires fabrication and a few compromises. You can ask me specific questions, but I probably won't do the formal writeup anytime soon.
     
  4. VolDead08

    VolDead08 Mustang Addict

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    I am in no rush to complete the swap, so whenever you get the write up done, post it up to the site. There is hardly any write ups about the swap, even though a handful of people have done it. Kuro made it sound easy with his, because his was a 3V, and I am interested in doing the 4V.
     
  5. GallopingFord

    GallopingFord I'm Cam - Mr. Indecisive

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    I'm doing a 5.4 4V swap at the moment. Check out the thread in my sig - complete write up as I go along. It is not a 5.4 4v N/A swap though - simply a GT500 engine/trans. Like mentioned above, I have a 09 so I am simply plugging in the GT500 engine harness along with the stock GT body and dash harness into a GT500 ECU. Not interested in using the GT500 gauge cluster (with the boost gauge). If I was then I'd have to swap the entire dash harness.
     
  6. VolDead08

    VolDead08 Mustang Addict

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    Yeah, I am kinda following your thread, but it seems that you are just swapping everything over. I am jealous of all your toys. I plan on just swapping in a 5.4L 4V with any forced induction, for right now. If I come across a GT500 engine for a decent price when the time comes, then it will happen, but if not, I am not worried. People have just told me, it couldn't be done, and that is kinda why I want to do it, just to prove them wrong. :nk:
     
  7. t-kid

    t-kid forum member

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    Trying to do an N/A 4V? with your "budget build" V6?
     
  8. VolDead08

    VolDead08 Mustang Addict

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    That was a plan, once I got out of high school, but have since decided it wasnt worth it. Might do it when I get a GT just to say that it is different and have the potential to go high boost in the future if I wanted.
     
  9. jsimmonstx

    jsimmonstx forum member

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    Pfft! Why do what everyone else is doing when you can do this:

    http://www.youtube.com/watch?v=dILMgirAox4




    please learn to embed video - http://s197forum.com/forum/showthread.php?t=3643
     
    Last edited by a moderator: Apr 2, 2014
  10. VolDead08

    VolDead08 Mustang Addict

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  11. gray1622

    gray1622 forum member

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    That would be a nose heavy bitch.
     
  12. dream07

    dream07 forum member

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    x2, and a smokey, smelly bitch
     
  13. VolDead08

    VolDead08 Mustang Addict

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    8.83 in the 1/4 mile...
     
  14. Firefighter4st41

    Firefighter4st41 Junior Member

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    How much?
     
  15. Daniel

    Daniel Junior Member

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    What kind of custom work is needed when upgrading v6 driveshaft to a v8
     

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