ive noticed a few people paint the bottom ends of the motors, is high temp paint to help keep it slightly cooler or just normal everyday hammerite? is there anything that can be done to the bottom end for 1600's that people recommend or its internals to incease reliability?

notice how i say "reliability" a lot even though its a cvh, i want to have one that actually will run good for a while without having nothing but problems and problems lol