73 dart sport small block motor mounts

Ok here is what I'm workin with the car was originally a slant 6 supposedly some put a 440 in it but took it out before I got it. So im gonna need the mounts that allow a small block to be put into the slant 6 brackets. Right? Here are some pics of the K-frame because it may have been swapped to a V-8 K-frame didnt know if there was anyway to tell the difference.View attachment C27.jpg

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