Internal engine coatings?

Thanks for digging this back up guys! The reason I asked is I was reading some of David Vizards writing and it seems like he is a HUGE believer in coatings, but it also seems sometimes for product placement...

Leanna, do you think the thermal coatings would even show an improvement on hyper pistons? Are bake-em-yerself coatings as any a professional would have? (with proper application of course)

I'm all for anything that'll protect my engine, even a little, by preventing detonation or such, but I'm a little weary of products being a scam.


After the basic 4bbl cam exhaust dollar per return in hp gets less and less except maybe heads. All the little things do add up in dollars and hp.

But I'd spend $1000 in heads before I'd spend it in coatings