Internal engine coatings - worth it?

[BuickMike]

I've done my own ceramic coating from Caswell before and it turned out fantastic. I am going to be coating my headers, crossover, turbo hot side, and DP.

I noticed that they also have internal coatings. They have thermal coating for the piston tops and combustion chambers and dry film coating for bearings.

Should I do this? I'm pretty convinced that I should at least do the thermal coating, but not sure I shljd bother with the dry film. Thoughts? Link below:

Caswell Inc. - Tech Line Coatings

 

[rmar]

I would highly recommend Techline coatings for your internal and external coatings. Most coatings like the dry film lube are great if applied and prepped properly. But most gains are only noticed if you are squeezing every last bit out of it. Some use it to alter clearance but properly should be burnished down to 0. The dry film lubes I like but the tops of pistons on a Turbo FI
motor that isn't going to be tore down seasonally not so much.

 

[LOT]

some experience with coating

Myself (using Techline) and Callico coating in NC have done the top of pistons--what we found was that Techline and whatever Callico used would not stay on. The fuel being sprayed in under fuel injection pressure would act like sand blasting. This was a few years ago. I like bearing coating fro controlling clearance. Never tried runner coating--I do like dry film on valve springs--run cooler nad don't drop their pressure like non coated.