He's going to visually inspect it, you're good. He can tell if the metal surface hardness is up to spec, if there are any flaws in the in the castings or forgings (forgings? China? Yeah, probably). Ductility? Fracture Toughness? Fatigue strength? Crystalline structure? Alloy composition? Lubricant suitability?
No sweat. He'll look it over for thirty seconds, maybe even a minute before he slaps it in. It'll be fine. If it fails, he'll just pull over.
