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Old 09-18-2006, 02:25 PM
something droll and pithy
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SBC new style crank in old style block

I found out the 2 bolt main 1996 pickup block I bought is cracked.

I bought a 3970010 4-bolt main block this weekend at a swap meet and will be taking it to the machine shop to have them check it out.

My question is, if the crank from the 1996 one-piece rear seal block is good, can I use it with the older style 2-piece rear seal block? I don't have both blocks in my garage to compare. If it won't fit right in, is there an adapter?

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Old 09-18-2006, 02:32 PM
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No that can't be done if you had a eairly crank and a late block that can be done as we build quite a few engines using these later blocks and older cranks but you have to use a speicial rear seal adp. as we use the earlier oil pans.

To bad your combo wasn't the other way around.
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Old 09-19-2006, 07:08 AM
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bump ttt

let us know how it turns out..............

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