The casting code on the block is 3989854 and the date is A 21 70 if that helps any, and it is a four bolt main. I could'nt find any other code on the block.

[This message has been edited by caddymac (edited 02-01-2000).]

I show a 69-72 402cu in my papers.

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Bryan Shook
Favorite Quote - Some people have shrinks. Some people have their garage.
www.geocities.com/motorcity/speedway/6673 (http://www.geocities.com/motorcity/speedway/6673)