Isn't it suppose to be about boats?
"Capt Bob" wrote in message
oups.com...
Yes, and I understand other differences as well. Head Gaskits etc.Its
just interesting that GM bolt patterns are consistant. For all their
engines.
I think there are actually 2 different patterns. I think the mid 70's had
the change. Probably when they went to the bottom mount starter.
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