Here is what mortec.com had. Email the guy to ask on the other numbers. If
the block is in the truck I have found that sometimes it is easier to get a
rubing of the casting numbers. Take a piece of paper and rub the numbers
like you did with pennies when you were a kid. Almost sounds too simple,
but I thought of it after unsucessfully trying to get the numbers of my
mom's 1939 Plymouth. Worked like a charm, and you can then see the numbers
in better light.
Engine # CI Year Main
3970010....302.....69.......4...........Z-28 Camaro
3970010....327.....69.......2...........Trucks and industrial
3970010....350.....69-80...2 or 4
Hope this all helps.
Eric Brown
1951 Chevrolet 3100 "Christine"
1951 Studebaker Starlight coupe
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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