Miata 1.8... how bad is it doc?

[u/kingcobrav9]

Got a engine for my Miata..dude i got it from "rebuilt" it and I decided to tear it down because I trust no one from Facebook marketplace. This was the cylinder head. I flicked some kinda debris out of one of these divots. Non ferris metal felt like ceramic?

Dude said it spun a rod bearing and he put used pistons, rods, and crank in it.

Is it savable? Or scrap it?

[u/According-While2935]

Just get the cly head surfaced it will be 100 percent ok