Thread: Engine ID

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Originally Posted by jima

Just bought an '81 El Camino. Originally had a 6 cyl but now with a SBC. Supposed to be a 350 but I'd like to know for sure what it is. I've checked all the web sites I could find but have not found matching block casting number/block stamp.
Casting number: 8970010 (First digit IS 8, not 3.)

Ummm, no, the first digit is NOT 8, it is 3. There was no casting number 8970010.
3970010-302, 327, 350, 1968 to 1980.
Post a casting number off the heads.....under the valve cover
http://www.speednik.com/files/2013/09/stockCastNo.jpg

Go back for a second look at that suffix number.

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