Radiator.... dam it!

[ericpost]

Alright I am a radiator away from playing and I can't find the right one and I thought this would be the easy part!!!! The one in the truck right now WAS AWSOME but is now leaking. It is not the stock one and I'm having some issues finding the right one.

The biggest challenge is finding one with a heater return line built into the tank. I can find the right dimensions but they don't look to have the heater line built into the tank. For example a '77 GMC Jimmy looks like it fits but I can't tell if it has the heater return... None of the online specs seem to reference these even if I see other model years with them in the picture

Does anyone have any ideas outside of re-coring mine on how to find a good match? Re-coring mine is $425!

Here is what I'm looking for:

Brass/Copper core
4 core
28 1/2 x 19 x 2 5/8
Top left 1 5/8
Bottom right 1 7/8
Heater 3/4