6.0 to 7.3 Conversion - PowerStrokeNation : Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 12-16-2010, 12:41 AM Thread Starter
PSN Newb
Join Date: Dec 2010
Posts: 1
6.0 to 7.3 Conversion

I have a 2003 F-250 with an auto trans and a sick 6.0. I also have a 2000 7.3 with an auto trans that is wrecked with 114,000 miles on it. I want to put the 7.3 out of the 2000 into the 2003 with the 6.0. Has any body ever done this? Can you give me some direction?
Belairboy55 is offline  
Sponsored Links
post #2 of 17 (permalink) Old 12-20-2010, 09:17 PM
PSN Local
Join Date: Dec 2008
Location: OREGON
Posts: 215
Re: 6.0 to 7.3 Conversion

oh i'm sure its been done......just use all the wiring from 7.3 truck.

2008 F350 Lariat 6speed!
85yota350 is offline  
post #3 of 17 (permalink) Old 12-30-2010, 05:23 AM
Countryboy07's Avatar
Join Date: Feb 2008
Location: Ft. Wayne, IN
Posts: 1,325
Re: 6.0 to 7.3 Conversion

You'd be better off swapping in a cummins..... The 7.3L uses an entirely different harness and you'll have a lot of fun trying to graft the two together. Just my $.02


2002 VW Jetta TDI
Countryboy07 is offline  
post #4 of 17 (permalink) Old 12-30-2010, 05:58 AM
PSN Veteran
stroked99_1/2's Avatar
Join Date: Sep 2009
Location: Humbird, WI 54746
Posts: 1,830
Re: 6.0 to 7.3 Conversion

It would be a pain... Unless you have all the wiring harness's from the 7.3, be plug and play then, swap it all over, piece of cake and go.

Renegade Diesel
stroked99_1/2 is offline  
post #5 of 17 (permalink) Old 02-18-2011, 05:06 AM
2010 BOB Points Runner up
Dieselfever's Avatar
Join Date: Aug 2007
Location: Beaverlick, KY
Posts: 2,300
Send a message via AIM to Dieselfever Send a message via Yahoo to Dieselfever Send a message via Skype™ to Dieselfever
Re: 6.0 to 7.3 Conversion

I've got a guy wanting me to do a similar conversion. He has his '99 7.3L 6 speed that he totaled(That I just built an engine for with headstuds, swamps injectors, new clutch, etc) and wants to use the engine and transmission in an '03 6.0 auto truck he just bought.

Anyone have experience with this? Hope going to the 'dumb' transmission will make things go a little smoother but I know that the center 'hump' in the cab is different from an auto to a 6 speed.



1997 F350: Regular cab XLT, 7.3L PSD, 5 speed, 4x4, 3.55 - Some Stuff
2000 F350: Crew Cab, Lariat, 7.3L PSD, 6 speed, 4x4, 3.73 - More Stuff
2001 VW Golf: 4 door, GLS, 1.9L TDi, 5 speed - Darn near makes fuel!

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Dieselfever is offline  
post #6 of 17 (permalink) Old 02-19-2011, 12:47 PM
PSN Veteran
mwalsh9152's Avatar
Join Date: Jan 2009
Location: Wakefield Ma
Posts: 1,012
Re: 6.0 to 7.3 Conversion

As long as you have the complete donor it will be plug and play. On my Bronco I had to swap out the dash and engine harness along with both fuse box's, but the existing chassis harness and most of the interior plugs worked. Going from one diesel to the next you will probably have a lot less to swap than I did. Dash harness will likely be the same, you may just need to swap the engine harness, which is pretty simple.

As for the dumb transmission, I remember seeing one conversion where the guy cut the transmission hump out of the donor and grafted it into his truck.

1995 7.3 Bronco
mwalsh9152 is offline  
post #7 of 17 (permalink) Old 02-21-2011, 07:42 PM
GOSSteel's Avatar
Join Date: Feb 2009
Location: Beautiful Montana
Posts: 106
Re: 6.0 to 7.3 Conversion

The 03 is a split year for the 6.0 and 7.3, so everything will be fairly simple. Ford to Ford is still easier than Dodge to Ford, although we specialize in Fummins!
GOSSteel is offline  
post #8 of 17 (permalink) Old 05-27-2011, 06:08 PM
PSN Local
truckpullin_75's Avatar
Join Date: Apr 2010
Location: Olney, IL
Posts: 98
Re: 6.0 to 7.3 Conversion

Looking to do the same thing with mine. Have a fully built 7.3 in a rolled truck, engine wasn't hurt and neither was I thank god. Looking at buying a like-bodied 03 or 04 king ranch or harley edition and swapping out the 6.0 and 5r100 for a 7.3 and bts 4r100. Kept the truck so I still have all the wiring harness, cluster, etc. Even if I end up buying another 7.3 the engine is going to come out for the built one so the labor part of it shouldn't be much more intensive....I hope. Exactly what all would have to be swapped over??
truckpullin_75 is offline  
post #9 of 17 (permalink) Old 05-27-2011, 06:56 PM
OBS junkie
Cat_Rebel's Avatar
Join Date: Jul 2007
Location: In or under a truck
Posts: 8,250
Re: 6.0 to 7.3 Conversion

We're doing a 99 V10 gasser to 00 7.3L swap, we'll find out how everything works soon.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

97 F350 CCLB "Da Bus"

RIP Will Iott
"This ain't no practice run"

Originally Posted by countryboyrob View Post
And remember, he's cat rebel....he doesn't do it the normal way.
Cat_Rebel is offline  
post #10 of 17 (permalink) Old 05-28-2011, 03:33 AM
Modded by a Chevy Express
Alberta 7.3's Avatar
Join Date: Oct 2010
Posts: 419
Re: 6.0 to 7.3 Conversion

In '02 they changed the instrument cluster, and the power distribution was all moved to one fuse panel under the dash. The 2000 harnesses/power distribution will be completely different from the '03. The 02 and later cluster needs an 02 and later 7.3 PCM/related wiring for the WTS/WIF lights to operate correctly. You'll be able to swap in the 7.3 but probably need a 02-03 7.3 engine harness and PCM to avoid having to rewire the entire truck.

96 F250 SC/SWB/4X4 XLT Just a 7.3 with a bunch of the usual bolt-on crap
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

08 F350 CC/LWB/4X4 DRW Lariat
Alberta 7.3 is offline  

Quick Reply

Register Now

In order to be able to post messages on the PowerStrokeNation : Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

  LinkBacks (?)
LinkBack to this Thread: http://www.powerstrokenation.com/forums/28-engine-transmission-conversion/84483-6-0-7-3-conversion.html
Posted By For Type Date
6.0 to 7.3 Conversion Kit_Yaelp Search This thread Refback 11-26-2015 07:46 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome