buffing

I'm in the process of paint striping the engine. At the end I decided to do it my self rather than take it to the sand/soda blasters. A thought has occurred to me...has anyone ever tried to polish certain engine parts? Say the water pump cover or cam covers? Is the grade of aluminium able to...

Ok my max has a little wear and tear and some seems an easy fix - no rust or anything. My scoops and my sissy bar grab rail are the first things and most noticable to me. I can prob get some pics on here but they have a really bad case of I guess oxidization. Seems to be under the lacquer. A...