pcmaher:
I Agree. I just "assume" it was done right because it was professionally done, but you know how that goes... I'm kinda anal about my paint and I do an exceptional prep work for adhesion.

deltajetfixer:
I paint select internal items for heat reflection, and/or to assist oil back to the pan. I also use ceramic and film lubricants. The dry film is the bomb, I use it on my tranny too. Very cool stuff! It's made by a company called Techline (I think).

ken_xman:
Yeah, aluminum does that... I'd probably try it just to see how it holds up. But a nice shiny new valve cover is nice too. Of course I'd paint it black right away