It was clear that we were going to need some different kinds of paint. We got our VHT engine paint at Summit Racing in Ford blue as well as natural aluminum and cast-iron exhaust manifold coating. After much experimentation we decided on Rustoleum flat black paint for our engine bay. Although it has less gloss than a factory finish, we found that it offers a uniform sheen and it hides surface imperfections very well when surface preparation is less than perfect. We spent about $40 on the various types of spray paint we used.