68 340 manual radiator 2898027?

Dbk chk numbers and Google. 68 had a 340 manual specific rad. 69 340 was same rad auto vs std.
Remember casting #'s vs part #'s could be different.
I’m not trying to be a wise guy Mike but I could read it not blown up 2898027 is most likely a 273 was wondering if the way the book shows it that it could be a 340