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Engine Swap

959 views 4 replies 3 participants last post by  SoCal2V 
#1 ·
I'm about to do an engine swap. I have a 2000 mustang gt and I want to know if I'll have any problems putiting an 04 engine in. Will the ecu glitch out if I put a newer engine on? Will my wiring harness work for this one? Any help would be awesome I'm trying to get this stang back up and running
 
#2 · (Edited)
As long as the original wiring harness and fuel injectors are used the PCM won't be able to tell the difference.

The 2000 GT originally left the factory with a Windsor motor. The 2004 has a Romeo. There are differences in the block that do need to be accounted for. Research Windsor to Romeo swap. Plenty of people have done it (including myself).
 
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