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Old 07-20-2020, 08:23 PM
ddella22 ddella22 is offline
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Join Date: Nov 2012
Location: Summerville, SC
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I have seen other SR 63 blocks stamped similarly, I attached the casting number and date code, they all make sense to me
Quote:
Originally Posted by PontiacJim1959 View Post
Interesting, an SR block. I didn't think Pontiac used the "SR" designation until after 1967. My brother has a 1967 Pontiac 400 service replacment block and from my research, 1967 and earlier won't have "SR." Photo enclosed. It only has a "P" for the Pontiac foundry.
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