Swapping Engines/Transmission

blue00gt · 01-10-2008, 05:12 PM

As far as physically putting that stuff in another car, the drivetrain will bolt right into any Fox based car with the right k-member and modification to the tranny cross-member. The main issue people run into is the differences in the wiring.
For my swap I had a donor car so I was able to use all that stuff on mine.
Also, someone mentioned that you need the Cobra ECM, which is not necessarily true. I know several people who have used their 99-04 GT ECM with a custom tune and they run fine. Just a pain to figure out the wiring.

thors_1 · 02-10-2008, 02:35 PM

Quote:

Originally Posted by blue00gt

As far as physically putting that stuff in another car, the drivetrain will bolt right into any Fox based car with the right k-member and modification to the tranny cross-member. The main issue people run into is the differences in the wiring.
For my swap I had a donor car so I was able to use all that stuff on mine.
Also, someone mentioned that you need the Cobra ECM, which is not necessarily true. I know several people who have used their 99-04 GT ECM with a custom tune and they run fine. Just a pain to figure out the wiring.

I'm switching out my 4.6L to a 5.4L. both are 2 valve engines. If I install a.... cobra 4.6L dohv I need a different ECM. if you can give a link to where you can get your ECM redone/custom tuned from a single to a double it would save a lot of people some cash.I've never heard of anyone doing it, but then I'm not a mechanic and know nothing about the newer electrical on a car.

explicitone · 02-14-2008, 02:57 AM

Quote:

Originally Posted by thors_1

I'm switching out my 4.6L to a 5.4L. both are 2 valve engines. If I install a.... cobra 4.6L dohv I need a different ECM. if you can give a link to where you can get your ECM redone/custom tuned from a single to a double it would save a lot of people some cash.I've never heard of anyone doing it, but then I'm not a mechanic and know nothing about the newer electrical on a car.

you dont need a new ECU... you just need for a good tuner to tune it.... a buddy of mine has a 4v with a C4 in a 98gt still using the stock ECU

01-10-2008, 05:12 PM	#1
blue00gt Mustang Addict Join Date: Jan 2001 Location: McKinney, TX Posts: 1,294	Re: Swapping Engines/Transmission As far as physically putting that stuff in another car, the drivetrain will bolt right into any Fox based car with the right k-member and modification to the tranny cross-member. The main issue people run into is the differences in the wiring. For my swap I had a donor car so I was able to use all that stuff on mine. Also, someone mentioned that you need the Cobra ECM, which is not necessarily true. I know several people who have used their 99-04 GT ECM with a custom tune and they run fine. Just a pain to figure out the wiring. __________________ Strike down the unroadworthy! 2000 GT Atl. Blue: '03 Cobra motor - 465rwhp/473rwtq, T-56 6-speed, full MM TA/PH & tubular K-member suspension, Saleen body, 17" Torq-Thrust II's, M/T ET Street radials, and lots more '94 Rio Red Cobra: All the bolt-ons, 3.73s

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