RADIATOR help...

[CEE1NG_RED]

I have a '67 CHEVY SWB truck with a '78 350 motor. Now, my radiator has a leak on the ports where the fins are (two locations). My question...is my radiator a '78 or '67? My assumption is a '78, but I want to be sure.

Also, what radiator brand and part# works best that most of you have bought new from a local automotive store for your '78 C10 350 truck. My truck is an automatic with a TH350 transmission and the AC and heater system have been taken off/deleted. Any feedback would be greatly appreciated. Lastly, is a 1 core or 2 core good enough for my truck? Not really sure what is the reason for the number of cores as some C10 have used a 2 core and some 1 core radiator tanks from a Chevelle. Thank you.