340 block looking for its original home

I bought a 340 block for my dart awhile back. I was going to put it in my dart but now the dart is getting a new gen 3 hemi. I would like to got this block back to its original car. I bought the block in New Hampshire, the number on block is 1b18160? 9 or 0 need to clean it up better for the last digit. block is for sale. let me know if this will help anyone