Painting the cylinder...

[87spree70superbee]

Okay.

So I was thinking about getting a Taz big bore kit... and I was wondering if anyone thinks spraying a coat or two of high-temp paint on the outside of the cylinder would affect the cooling. I know that these are really sensitive to their cooling properties, so I figured I'd ask before I screw up my motor lol... It's just that after seeing how rusty my current cylinder fins are, I kinda want to protect any new ones I'd install. Obviously I'd mask off everything except the fins, etc.

Thanks for the input
Nick

[Wheelman-111]

Greetings:

Cast iron surface rusts quickly, but corrosion stops there. Paint probably insulates a little, and probably won't stop corrosion for long. It's under shrouds, unseen. You gain little, risk much.
Let it rust.

[paulpauly7]

i painted my cylinder 2000kms ago and never had a heating problem or cooling should i say no rust either i used VHT flame proof header paint

[Pete M]

Air cooled cylinders should not be painted. Heat transference is how the cylinder bore scrubs off heat. When you paint it, the paint works as an insulator and diminishes the cooling capacity of the fins.