If you want a rock hard WHITE paint that wont yellow with chemicals , get some Bilgekote made by Interlux, great. wipes clean with any degreaser. Has a nice shine also, and you can put it on with a brush, lays down nice.

Went to Mercruiser.com yesterday (3/9) and under the FAQ section ther is a complete paint recipe from Merc. They use Ditzler prods.

I have used Dupont Centari with good results on engines. They don't get hot enough to burn it and you can get a million colors.

PPG Radiance II awesome colors ,DPLF epoxy primer in my opinion is the best offered.