Yes, they are brand x. And... Wow. Worse shrouding I have ever seen. Would unshrouding the intake valve help or hurt this cyl head? I guess they were shooting for some type of swirl and quench but what the hell were they thinking? That wall is right up against the valve and is close to .200" not only that but the spark plug boss impinges on the flow as well. Bust out the carbides or round file this junk?
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