1) It's from the Japanese realesed Galant, I believe they called them the Evolution somewhere, but was pre EVO III.. not sure.
It is not the EVO III . Most JDM Galants, come with a 14b, but the Galant VR4's came with a small 16g
2)Yes, will bolt up to the JDM
3)Don't know about the mirage, I'll see if I can find aything.

The 6 bolt JDM engines are from 88-92 Galant VR4's. They can come with either a 14b or a Big 16g depending on which model it is. The VR4 RS Evolution is the model with the Big 16g and yellowtop 510 injectors. If you have a U.S. 6 bolt everything you have will bolt on to the JDM 6 bolt.

because i was planning on either selling my motor and buying an evo 3 motor and bolting all my parts up to it. or selling my motor and part out my performance parts and thats my motor money. not sure yet.

The Evo 3 engine won't bolt into a 1g.

then why am i hearing from multiple people that its a direct swap? just dumb people i guess. but i swore i heard someone in another thread say they bought an evo 3 motor and it swaped right into a 1g

It doesn't, it bolts directly into a 2g though. The mounts are different, the 2g has the front mount on the tranny instead of the block. I don't know how different the other mounts are.

would it be possible to get custom mounts for the motor or is there a motor like the evo 3 i could swap?

Im in the same boat. Im thinking about swapping an evo 3 motor into a 2g. Does any know how much horespower is stock. I think its like 250. Also is there anywebsites that I can go to for more info.

Why don't you keep your motors until you need a different one? If you want to waste money, just give it to me instead. I need it.

dont we all. but i really would like the evo 3 motor. and my friend told me today that if its a 6 bolt evo 3 it should just drop onto your stock mounts. does that sound correct?

I thought all the evo III motors were 7bolt.. Someone might correct me though.
The older model Galant Evolutions were 6bolt.
And I dont believe the bolt pattern on the flywheel really has a lot to do with mount points.