that looks like the airconditoning one, the heater core is usually a little smaller(edit plus antifreeze should come out of it), you will still get clean radiator price for it, one more tip, the key in the ignition is made of brass, we throw them in a bucket.
you done great, you will find out the ones you want to rip the dash out and the ones you don't, i'd take in these first ones to see what your getting apiece, and then save them up usually with quantity you can get a better price
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