u can put the h22 head on the f22 block,,,its possible but its also alot of work, and looking for parts....you re bassicly doing a block conversion instead of a head swap...you need h22 water pump, crank gear, timing belt and tensioner....im not sure exactly how but you have to plug oil passages in the head, because the h22 head overlaps the block by a little bit....my advice is just do a H22 swap in ur car...you have to many intangibles and dont have a certainty the motor will run right