Engine Questions

ronis

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I have 02 3.8 V6 Manual mustang with 161k miles. I have recently purchased a 1999 Vert 3.8 V6 Mustang with 181k for extremely cheap to use for parts. My plan was to take off the parts I need and also take out the engine and transmission of the 1999 to rebuild and put into my 02 when it goes. I was looking at the engine and notice some slight differences. I was wondering if the 1999 3.8v6 engine/transmission would fit into my 02 without the need to swap anything else over such as the wiring harness.
 

g36 monkey

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The harnesses should be the same. The heater hoses are different from 01+ if I remember correctly. They also call the 03+ a 3.9, though I don't remember there actually being any difference.

What are you seeing that you think is different?

Either way, if you pull the engine anyhow, just grab the harness - just in case. The head gaskets are the big issue on the 3.8 - and you're probably about due for them. The good news, they're really simple and you could easily do them in a few nights after work if one goes before you get the new motor built. You could always look into the 4.2 from the F-150, though I'm partial to that route.
 

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