Looking for original 340

I bought a Hemi long block in the early '80's. About eight years ago I get a call from a guy that has the car the engine came from. As this was a '66 he had tracked me down through the owners of the car until he found the one that had sold the engine to me. Long story short, we swapped only the blocks, he got his original back and I got an unstamped block for my '67. Two people were happy over that. So it does happen.