sanding, sanding, sanding, and polishing and on and on...
well its a long story...... maybe I will do a how to polish bare aluminum, or should I say sand aluminum............
To make it short right now, you have to sand the heck out of the valve cover to get it smooth..... all the way to 1500 grit ( I mean hours of it )
Then you polish the cover with buffing wheel ( NOT A BUFFING PAD ) on grinder or other means with 3 differnt kinds of compound, Tripoli, White Rouge and then Red Rouge other wise known as jewelers rouge. This can be bought at Sears by craftsman. Patience patience patience while sanding and polishing.
Our valve cover is soooo bad needs lots and lots and lots of sanding.
Alot involved and cleanlyness is a must. I'll write in detail if interested ( Basic Aluminum Polishing )
Notice I keep saying lots of sanding..... maybe I am underestamating the time of sanding...... hours, LOL