I never even looked to see where they were made..... Japan.
Probably better than China I'm thinking.
Anyway..... They are in good shape. The only flaw ( other than the worn out finish) is where the breathers were set..... Someone went nuts with a drill. They fabbed a piece of aluminum for a spacer. They did not leak when I ran em last summer. The breathers themselves are in excellent shape. 30 minutes polishing and they'll shine up nicely.
Long damn explanation for free.....