Paul813
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Posts posted by Paul813
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Ok so I came up with stamped in the back of the block M226 where the date code shows in your picture
i could not find any other number
the heads are stamped GM-1 ? Any info
So looking online is this a December 22 1966 engine? Going off M226
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I’ll try to check it out tomorrow and let you know what I come up with thanks !
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Question about a 1973 Pontiac 400 Engine Numbers
in Pontiac General Discussion/Questions
Posted
Could it be 1976? Or is definitely 1966