Painting aluminum block and heads (LS3). What to use?

[scherp69]

I've tried searching on several different forums, but there is not a whole lot of info on guys painting their LS engines. I want to paint mine while it's still clean. The two options that I'm looking at is either painting it with POR15 and then top coating it with their engine enamel paint. I've read lots of good reviews on the POR15 engine paint and have used their products quite a bit so I know what's required to make it stick. So far I'm really impressed with their stuff. The other option I'm looking at is using Duplicolor's engine primer followed up with their engine paint with ceramic. I want to paint it aluminum color to make it look stock, but to avoid any ugly oxidize build up.

What have you guys used to paint your aluminum motors and how has it stood up? If you did it again, would you use the same stuff?

Thanks in advance.