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Originally Posted by brotherchris
I was given a small block motor and I am trying to figuare out which motor it is. The guy told me it was a 350 but I'm not sure. Here are the numbers that I have found on it.
35 GM 3970010
v0624tyc 25713
Please let me know if anyone can help.
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Brotherchris,
I'm also researching an old 350 block (mine's from an early '80's truck). Your casting number 3970010 was used twice: In 1968 it was given to some 327's. Then from 1969-79 it was given to 350's. If you look at the heads between the rocker arms you should see a date for when the heads were cast - this might give you a clue as to when the engine was made. (assuming the heads are original).
Try looking at this web site:
http://www.mortec.com/location.htm for more info.
Hope this helps