The Supercar Registry - 427 block Main caps date code

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- - 427 block Main caps date code (https://www.yenko.net/forum/showthread.php?t=90012)

zl12iv

12-29-2006 09:23 AM

427 block Main caps date code

Hi
I have 427 block has no date codes or cast numbers.
I noticed today i seen numbers an big GM stamped on the mains.what are the numbers represent.As far as??

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