[oletrucks] Need help in identifying an engine

[MARK TREUTELAAR <oldphones@sbcglobal.net>]

I purchased anb engine I believe was in a 1962 Chevrolet and want to putthis in 
an older truck I have. . The only problem is I do not know what size it is . 
Its a straight 6 . On the engines right side  it reads CON 2      3994257  GM   
86      On the left side it reads 64    4257     . Any info on this will surely 
help   . I think it might be larger than a 235 but Im not sure Thank you