These are really core plugs, not freeze plugs. The holes are left over
from the cores that create the water passages in the sand casting process
for the block .
Mike Myers
HAN7
On Tue, 14 Jan 2003 09:32:35 -0600 John.Deikis@med.va.gov writes:
> That shouldn't be much of a concern. They aren't really freeze
> plugs, just
> called that because they pop when your motor freezes. (Other parts
> of the
> block "pop" too, unfortunately). Those are more accurately called
> "core
> plugs" and are a part of the casting process, if I'm not full of
> shit on
> this one.
>
> --JohnD
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