dssur
+1y
the frames are different between the 2200 and the 2600i, notably the engine mounts. They are, as you suspect, unique.
The transmission bellhousing is different, but the tail shaft should be the same, leading me to think the transmission mount should be the same.
If givent the choice, I would run the 2.2. The 2.6 injected motors, while faster, require more stuff to make them run (EFI pump, computer, unique distributor etc) and are very prone to head cracks. Used heads are just heads that havent cracked yet, the only fix is a NEW head from the dealer, bare it costs 900. My 2 cents.