Yes that was the point of my previous post when I brought up casting cylinder heads. It's really not so much the casting itself, that part is fine. The integrity of the casting isn't the issue. If it were then we'd be seeing a whole hell of a lot of cylinder head flaws and issues from various brands that have them cast over seas. So we can forget about China material as far as that goes in regards to intakes. The intakes aren't going to fall apart.
It's when those said heads are also assembled in China when problems arise. Seats are many times garbage, valve jobs that don't seal and cheap parts used on the rest of the valvetrain is where people get in trouble. That's when the China stuff can bite you. But people keep buying them cause they are cheap and don't follow the advice when people say you really should send them to a shop for a thorough going over before plopping them on your engine.
Intakes are not that kind of worry
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