Well,the bore and stroke is 96.9x75.0( found at DLC's Turbo-Centric web site), can't offer much help on the others.
Trey, not to be a PITA, but since you had a pretty good look at the EJ22T, EJ25 DOHC, and EJ25 SOHC heads, does it look like everything is a completely direct swap from one to another? I just find it amazing that a head from '00 can bolt right on a different motor from as early as '91. I mean will all the coolant passages line up and everything? Hell, will all the bolt holes even line up?
I'm going to call around and see what places are getting for a set of the 2.5 heads just for curiosity, but I'm still very interested in your findings with the stock EJ22T cams. Looking forward to it.