Swappers Come Hither!

Alright, now, I want to know what kinds of motors or frankensteins I can make work in a CRX. (frankensteins meaning the head is different from the block).

Now the deciding factor of me getting a CRX, would be the fact that I could swap a B18 (VTEC) motor in one. But my friend said that The type R couldnt fit. So i was wondering what all my options are....i would research it myself today but i have to work on this kids air ride. So, let me know. I appreciate it all. peace.