I just wanted to post how pleased I have been with KBS Coatings - Xtreme Temperature coating paint. I had originally painted my 400 motor with Bill Hirsch's paint. The paint burned off the exhaust ports fairly quick and I was always touching them up. They would turn bronze after 20-30 min of driving.

I had seen information on KBS Coatings - Xtreme Temperature coating and though I would give it a try, They have Pontiac blue metallic however it is a different shade then Bill Hirsch's.

I painted the exhaust ports as instructed. I have a few hours running the engine and still it has not even turned. Looks the same as the day I painted them.

I just wanted to share my experience with it and let other know there is a paint that seems like it will stay on the exhaust ports now.

Here is a link to the extreme coating paint. https://www.kbs-coatings.com/XTC.html

I have also tried their cast color on my Long Branch Exhaust and it has done great as well.

Here is a photo of my exhaust ports after several hours running it.

Thanks