Painting my engine?

[muddpile]

What does everyone use to paint their powerplants in their trucks? My old 350 was originally light blue (out of an 80's burb) and at one point in it's life it was spraypained dark blue, but the paint never stuck. I am thinking of going with either chev orange, light blue, or just a basic black or silver. The block, heads and oil pan are what need to be done. Basically, what I'm wondering is what is the prepwork involved and what paint should I use.

Also, while I'm at it I noticed my exhaust manifolds are rusty. Is there any fix for those sort of a good sandblast and some jet coating? The truck will be a driver, and I've heard how fast headers burn through when run on a daily driver, so I think I'll pass on them (plus I have brand new dual exhaust and I doubt it would line up with any headers).