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05-14-2023, 09:24 PM | #1 |
Registered User
Join Date: Feb 2022
Location: Devon, Alberta
Posts: 50
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Block ident and missing numbers
Are there always numbers on the block in front of the passenger side head? I can't see any evidence of any
I finished the engine disassembly this afternoon, the pistons don't have any oversize marks, I need some better tools to check for sure if it's been bored , but with a caliper it's pretty much 4.000". Wondering if the block has been ground. 3970010 block , K 7 date code? I thought it was supposed to be more digits. It's a four bolt main block. It's been somewhat apart before .. lots of timing gear plastic teeth left in the pan..
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1971 GMC C25 with a 'refreshed' 1996 Vortec 350/SM465 |
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