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Eason's Excursion 7.3 Swap Thread

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Old Oct 17, 2019 | 09:33 PM
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Cool Eason's Excursion 7.3 Swap Thread

V10 to 7.3 excursion rebirth!!!
No hate/ discouraging posts please. I'm past the point of no return. I know whats involved in the swap so don't tell me how much of a PITA it is, I already know. This is just a thread documenting my swap progress for anyone else to attempt this kind of swap.

I am swapping the motor/ dash out of a 2001 F350 XL work truck into my 2000 4x4 excursion. the plan is to keep the trans out of the excursion and swap all 7.3 components; dash wiring, gage cluster, fuse boxes, ECM, inter-cooler, radiator, hydro-booster, engine harness, etc. I want this swap to be like ford put this motor in themselves. It will be a complete swap done RIGHT, no cutting corners. I plan to have all functions working and no CEL. And after the 7.3 swap is done I plan to put the v10 dash, motor, etc. into the F350 and make it a running/ driving truck and sell it to re-coop some obvious expenses for this swap.

About the F350:
240,000 miles XL truck with bench seats, rubber flooring and manual locks and windows. I bought this truck not running (because of 2 badly dead batteries and the owner ran it out of diesel fuel) for 3,000 dollars As is. The owner blew out a hydraulic line in the power steering because he was flat pulling it back to his house downhill without the truck running laying into the brakes. So before I start yanking out motors, I am going to get this 7.3 running like a top while I can still test it in a truck. I might end up pulling the valve covers and replacing injector cups and turbo seals while I'm at it too. once the motor is pulled I will re-seal all known problem and hard to get to seals (oil pan/ rear main seal). So, it already needs 2 new batteries (starter too probably) and new power steering hoses, and I should have a good running motor to swap.

About the Excursion:
240,000 miles also, 4x4 LIMITED. Not much to be said here. I will be pulling everything V10 related out and putting everything 7.3 related in.

Money for the swap?:
So where this swap sits as of now I am 3,000 dollars in and I hope to achieve this swap for around 5,000. Hopefully I will be able to sell the v10 F350 for a decent amount. Yes I could have bought a 7.3 4X4 excursion, but not for the money I paid to buy the trucks and do the swap. (low miles clean 7.3 4X4 excursions go for about 15 to 25k here)

Feel free to comment about any possible obstacles along the way (I'm sure there will be plenty) and have a nice day!


 
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Old Oct 17, 2019 | 09:53 PM
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How will you get the trans from a V10 to bolt to a 7.3L?
 
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Old Oct 17, 2019 | 10:23 PM
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Originally Posted by Mark Kovalsky
How will you get the trans from a V10 to bolt to a 7.3L?
Glad you mentioned. I forgot to mention the trans in my excursion has some issues and I'm going to have the tranny out of the f350 anyway, so I'm going to have a fresh rebuild done on it and im going to have a 4x4 output shaft installed. would the extention housing off my 5R110 fit on the 4R100? or do I need to dig one of those up too? i might wind up scraping the idea of rebuilding the donor truck and part it out if it gets too costly to convert the 2x4 to 4x4.
 
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Old Oct 18, 2019 | 08:22 AM
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Subscribing! Good luck!

As to the trans rear housing, I can't imagine that it would interchange between a 5R and 4R. But, aren't they both 4R's??? To my knowledge, the 5R didn't come into play until the 2003 6.0....

Sound's like you have a pretty decent plan for the swap, and being that you'll have everything, probably not an issue with parts, etc. If it were me, I'd get the 7.3 running so you know what you have, and then tear it down completely and make sure. Bearing tolerances, camshaft wear, fuel system health, air system health, the list goes on. At a minimum, you'd get to reseal everything when putting it back together. It would really suck to go through all that work and spin a bearing 3 months later. 240K isn't a ton of miles for either engine, but without knowing the entire history, you're taking a guess. Good luck and post up LOTS of pics!!
 
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Old Oct 18, 2019 | 08:58 AM
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Originally Posted by EXSwap
Subscribing! Good luck!

As to the trans rear housing, I can't imagine that it would interchange between a 5R and 4R. But, aren't they both 4R's??? To my knowledge, the 5R didn't come into play until the 2003 6.0....

Sound's like you have a pretty decent plan for the swap, and being that you'll have everything, probably not an issue with parts, etc. If it were me, I'd get the 7.3 running so you know what you have, and then tear it down completely and make sure. Bearing tolerances, camshaft wear, fuel system health, air system health, the list goes on. At a minimum, you'd get to reseal everything when putting it back together. It would really suck to go through all that work and spin a bearing 3 months later. 240K isn't a ton of miles for either engine, but without knowing the entire history, you're taking a guess. Good luck and post up LOTS of pics!!
Thanks for the feedback. I defiantly will be posting lots of pictures. Today's task is to get a better battery/ starter setup and fix the power steering hose.
 
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Old Oct 18, 2019 | 01:53 PM
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Originally Posted by Eason1960
would the extention housing off my 5R110 fit on the 4R100?
Where did the 5R110 come from? I thought we were talking about 2000 and 2001 trucks.
 
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Old Oct 18, 2019 | 02:53 PM
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Originally Posted by Mark Kovalsky
Where did the 5R110 come from? I thought we were talking about 2000 and 2001 trucks.
Yep, made me scratch my head too.

OP, do you have a pile of other parts you're trying to use to make the swap cheaper?

Stewart
 
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Old Oct 18, 2019 | 06:49 PM
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Originally Posted by Mark Kovalsky
Where did the 5R110 come from? I thought we were talking about 2000 and 2001 trucks.
Okay I'm lost now. I thought the trans for a v10 was the same as the 6.0 and 5.4 and all the gasers. So the 7.3 and the v10 are the same trans with a different bell hosing?
 
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Old Oct 18, 2019 | 09:01 PM
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The trans behind the V10 was the same as the 6.0L and 5.4L starting in 2005. In 2000 and 2001 the ONLY automatic trans in the Superduty and the ONLY trans in the Excursion was the 4R100. Diesels and gas engines have different cases. The bellhousing is part of the case and is not removeable.
 
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Old Oct 19, 2019 | 06:54 AM
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Originally Posted by Mark Kovalsky
The trans behind the V10 was the same as the 6.0L and 5.4L starting in 2005. In 2000 and 2001 the ONLY automatic trans in the Superduty and the ONLY trans in the Excursion was the 4R100. Diesels and gas engines have different cases. The bellhousing is part of the case and is not removeable.
Mark, what about the internals between the V10, and 7.3 such as turbine shaft, and amount of friction steels and discs?
Minus any bellhousing configurations, would the 4R100's from the 2000-2001 years heave the same amount of friction parts and torque ratings between the 7.3, 5.4, and 6.8?
 
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Old Oct 19, 2019 | 08:59 PM
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No, they do not. The 7.3L has some better parts than the 6.8L, and the 5.4L is significantly weaker than the other two. Turbine shafts are al the same.
 
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Old Oct 20, 2019 | 07:53 AM
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Why would FMC put better parts in a trk with a 7.3?
 
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Old Oct 20, 2019 | 08:38 AM
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Because the 7.3L had more torque. We were trying to keep it from breaking.
 
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Old Oct 20, 2019 | 09:21 AM
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Originally Posted by Mark Kovalsky
Because the 7.3L had more torque. We were trying to keep it from breaking.
Thanks Mark!
 
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Old Oct 20, 2019 | 02:16 PM
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For what you’ll get out of the f350 I think your better parting it when your done versus the labor involved to convert it back. I don’t think I’d disturb the injector cups if they’re not leaking. Myself I’d put injectors in the motor if they’re still original while it was out.
 
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