I used the joe standard engine rattlecan enamel in Ford red and although it looked red on the stand, it kinda looked chevy orange in the engine compartment compared to the red surrounding it. Good idea to use the same color as the hull. Marine engines run pretty cool, temp will not be a problem. I did however paint my intake and exhause the aluminum color which made it look more high perf than just red & black. There is a Ford blue in the enamel rattlecan that pretty much matches the blue Mercruiser color. I will be using that if I paint mine....red, white, and blue...what an idea.
Nick
1994 22' Classic-454 B1 Red & white
1981 13' Whaler sport(original owner)
South Tampa Bay, FL "May I mamoo dogface to the banana patch?"