Radiator confusion = Is it Possible the l6 250 Rad is the same as the 350?

[mr.mud1]

i don't know for certain but i'd doubt a 6 cylinder had the same rad as a big block?my Fremont built 72 big block truck with A/C has a 3 row rad but tanks that will accomodate a 4 core.i know on the rad support,in a few inches from the saddles that support the bottom of the rad at the tanks on one side is an extra set of holes for saddles for a narrower rad.i've never had a 6 cylinder truck but i have seen the extra holes on my truck and trucks from the past.my big block truck cools great with the new 3 core rad i did for it.what was in your truck?you said it might have been changed?i wouldn't think one of the 3 cores you have,would have any trouble cooling your engine?