Can anyone tell me can 2.0 valves be installed into 1.8 head? (2.0E to 1.8E head)

And what do you think about this option?
2.0E head 1.8E inlet mainfold and/or spacer made from aluminum(cut wiht laser)to change air flow so that it would go up(/\) and then down thru the head into valves or move by 1 inch whole inlet mainfold also with aluminum spacer?
Or does anyone have any bether solution?
But as fas i saw thw whole thing 1.8E head look much bether....but wiht smaller colling piping thow.....
One more question....if head is skimed an polished where do you get gaskets with bigger holes ????well inlet gasket you can cut but what about exhaust gasket??