When dried, it sands easy and can be ground off like other paints.1) Yeah, I hadn't fully appreciated the CNC finishing on these heads until I pulled the valve out and got a better look inside.
2) Oh no, I'm not touching those ports. The headers might be a little overkill, but at least I know they won't be choking the exhaust ports out one bit now.
3) Engine enamel isn't a bad idea. I've used this Rustoleum on rims in the past and they lasted for years without fading or chipping. I figure rims are exposed to the sun and elements a lot more than an engine bay, but then an engine bay sees a lot of heat so maybe ceramic engine enamel is a better choice?
I used this..
And did this..
And that was without any prep at all, I just sprayed the factory finish. I don't think I'm going to wet sand or fill holes or anything like that on the engine bay either. At this point just spray bombing it would be a huge improvement. Next time I have the engine out maybe I'll do it right, so the more I think about it, doing it in Por-15 may be a bad idea if it's not easy to sand/grind off.
It can resist chemical way better too.
Plus I think it’s rated to above 250 degrees, so it won’t be any issue in your engine bay.