EEC V flashing?

[Tom]

If one is going to get a custom flash done to their ecm, does it matter what the ecm came from? I realize there are wiring/harness issues, but given the pinout is correct can I use say, a lincoln pcm instead of a mustang?

[Tom]

Can anybody tell me where I can get an answer?

[Kirk]

Tom,

My first guess would be no.
If you give me all the details I can try to tap some of my sources.