I would be curious how these were formed. Was it somehow folded onto itself in a forging process which left a void?

John Molloy - you are the real metallurgist here, I'm just an armchair hack with a few classes and labs (and plenty of experience breaking things) - does it look like this was a void that created a weak area to you? That would be my guess looking at the picture without getting it in hand with a magnifying glass or scope.

-Michael

Quote:

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http://www.bigblockmopar.nl/test/IMG_3692.JPG

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