Stuart - I think
most listings call them expansion plugs, like the one I linked from RockAuto .... the question is
which of Fred's pictures are "accurate"? the one showing the old [possibly factory] plug dome in, or the one showing the way
he put the new plug in, dome out?
and Drew, I'd find it hard to believe all the engines you've worked on had factory original freeze plugs where none of the ones I've seen did
Bill
