Being that I skipped some important time to document with pics, the EJ20D has a new timing kit, valves (8/16 were bent), STi oil pan, dipstick, and pickup tube, and has all of the bolt-ons there were on the previous EJ22D.
^-Cometic EJ205 head gaskets 1mm thick (To boost compression from 9.5:1 to 10:1).
Time for the good part; Innards of the dead EJ22D.
Fun, right? After the EJ20D was swapped in, there were a few things to work out before it would finally run right. For 1, it wouldn't idle for crap. Changed IACV and it began to idle right after adjustment. Also, various things began to happen.
^- Got 4.44 LSD, which I haven't installed yet.
^- Rotated JDM fuel injectors so that plugs are easier to access.
^- All taken while I was situating the EJ20D swap.