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OK, regarding the ceramic coating on the head, rockers, piston and bearings. Here is what I understand. Keep in mind I am relaying the info.
He uses ceramic to direct heat and reduce friction. He tells me there are different types of ceramic coatings and on the rockers it impregnates the metal. He goes on to explain that if the ceramic were to fail, that means the part it is protecting would have failed even sooner.

My builder has been doing competition and unusual engines for 40+ years. He is not using my engine for experimentation, he has done it for 300 mph salt flat cars, road race Viper V10 and lots more, so I guess that's my data. He doesn't do bone stock engines.

I am sorry that is nowhere near enough detail for some. But that's all I got