[rokndad]

[quote=RodKnock;958804]Tom, I can't remember what kind of block that you have. Is it a Pond, Genesis or CSX?QUOTE]

It's a fairly early CSX block. No. 381. I don't think production date is the issue. I'm convinced now that it's a matter of heating and cooling cycles involving steel vs. aluminum, over time. The plugs were in there with no sealant on them. So I think it's only a matter of time for a joining of dissimilar metals to eventually move. LIke I said, no leaks until around 5,000 mi. Then it hit, and at slightly different times.

Tom