What are you guys using for internal engine paints, I know about glyptol, anything else being used for internal engine use?

While looking online for what brands of engine paints are good several months back I ran across this one. He claims no issues with just painting the whole thing inside and out.

https://www.corvetteforum.com/forum...e-paint-the-inside-of-their-engines.html

i am not sure the temps are high enough to be concerned with in any normal racing operation, unless one sees total engine failure, and then paint is the last of one's concerns.

I have used brushed Imron Urethane with good results in the past.

Cleanliness is likely the most important thing to have a handle on before painting with any paint.

One Shot sign paint is tough stuff, and would probably work good for this type of thing as well. Guys have been painting outsides of engines with it since the 80's, and they swear by it.

Either Glyptal or Rustoleum Red Primer - since the "70s, even street motors.
Surface cleanliness matters, of course, but never had to go nuts - just de-grease & hot water wash.
Never had a flake come off.

I bought a can of that but it says max temp 200 degrees. I doubt this engine would ever see that temp. but was wondering what else is out there.
I’m guessing the safety factor is much higher than 200 though.

This block was in Evaporust on and off over a two week period between brushing. Then went through the Jet-Wash.

Glyptol works great, have used it on and off for over 20 years