Here's the technique I used for wiring. I bought a couple rolls of the green heat shrink from Harbor Freight and made labels for all the pins I planned to swap. The number is the pin I pulled it from and then the new destination.

I also had to extend the A/C, IAC, cam and crank sensors. In addition, the IAT is combined with the MAF on the new motor, so I had to cut the plug off the V10 harness and incorporate it into the V8. The wiring is tedious!





Here's a shot of my messy engine bay



The radiator isn't bolted in yet, but I may need to do a little modding for clearance here!



I hope to have it moving under its own power today, but its my wifes birthday, so...

 

Well, it moves under its own power! Lots of work ahead still. The exhaust looks like its going to suck. The driver side dumps right onto the front driveshaft.

http://youtu.be/KuTraR7cP5k

 

nice man! so youre going to leave the TB upside down like that? i dont guess it matters, but was just wondering.

 

It doesn't work the other way, so yes it will stay that way. I tried flipping it so I could hook up the cruise, but the throttle linkage hits the intake.

 

what are you going to do for exhaust? true duals? or trying to work it into the original exhaust?

 

oh ok.

 

Still working that out!

 

How did you figure out the wiring, just looking at haynes diagrams?

 

Haynes was useless. I used the pinouts from alldata.

 

kinda figured seeing how you said it dumped onto the front axle. didn't know if you had any ideas.

 

I'm pretty sure that I'll chop up the F250 Y-Pipe to make a tight bend around the front driveshaft. The F250 Y-Pipe also hits the front crossmember that supports the front differential, so it's going to be hacked up pretty good. The added bonus to all this is that the V10 ECU is only looking for 3 o2 sensors, so I can eliminate the pre cats and drop to one catalytic converter.

This was an unplanned project, so I wasn't financially prepared for it. Hell, I have $650 into just getting the truck and family home from when the 5.4 seized. The exhaust system will have to be created from what I have around the house.

 

glad you're making progress!

 

I fabbed up the exhaust last night and it turned out mostly OK. I didn't create a sharp enough bend on the driver side to avoid the front driveshaft, so it still needs some work.

Now that I can hear it through the exhaust, I can tell its misfiring on several cylinders. I don't know why. I double checked my wiring to #1 which is definitely misfiring, and it is correct. It's not triggering a code, so this will be fun.

The good news is that the engine passes the KOEO test on my scanner meaning at least my sensors are hooked in right and communicating.

I also finished bolting up the front diff.

 

nice! well minus the misfiring cylinders, keep on it!

 

OK, got it running good. Turns out I'm not smarter than a 5th grader and I cannot count backwards. I had a few pins mixed up. I still need to figure out the VSS thing as when I go into OD, the odometer reads ------- and the O/D Off light flashes and it throws a P0500 for speed sensor. Tranny shifts crappy too...

Exhaust sounds good, no leaks, no vibrations, no additional cost!

I have not gotten on it hard yet because of the transmission, but there is a big difference in torque. I can tell it takes a lot less pedal to get the truck moving. I highly recommend this swap to anyone who has to replace their 5.4 or 4.6. If you do the work yourself, the additional cost is minimal.