351 Block help - Club Cobra

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#4 (permalink)

10-31-2003, 07:48 AM

TonyMadrid TonyMadrid is offline

CC Member

Join Date: Apr 2003

Location: Sparrowbush, NY

Cobra Make, Engine: A&C 351W, C4

Posts: 407

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351W Blocks

The earlier blocks were stronger; the base webbing was stronger. I believe from 1969 to mid 1974. Also the deck heght on those blocks was .023" shorter.

If you have a 1969 block you should be okay to overbore .060

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