Mark,

After Jerry's comments about making sure exactly which engine block you have, I would suggest it may be best to not make an assumption based on the "casting date" info you provided, but we need to know the actual "casting code" from the block to be certain which one you have.

Can you provide a picture of the block casting number (or at least report back with what it is) so we can make sure we aren't giving you inaccurate info please?

Thanks!

Dan

~ Dan
1951 Chevy 3 window 3100
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