Damn dude there is a million threads on this question. But just to give some input and not look like a total ass hole... the 22r block in 84 is weird not alot for it. The 20r head wont work, the 22re head i have heard will work but you have to do some drilling and tapping to make it work... other guys say it wont work at all because of the old 22r head is taller then the 22re and there is timing chain issues and so on. I'm sure guys will tune in and give you more details. I'll see if i can find you some info also.
