clevite in the states used to make Nismo stock...wouldn't surprise me at all if ACL are now producing them for Nismo.
Some silly people think that Nismo have a factory that produces all their items...lol. Just like HKS also have a similar factory that produces all their items. Most of the production is outsourced to save tooling up on specialist items...makes perfect business sense.
OS Giken 3 litre crankshafts are actually made in Australia, but due to contractural agreement you cannot buy them here.
Nothing wrong with ACL stuff...mine see's over 1000hp crank...Mark's engine sees 1500hp crank...both use off the shelf ACL's.