1971-72 340 Engine/Block

Looking for a 1971-72 Engine or at least the block with a casting date of late 1971(Oct-Dec) or January 1972. My car was built in Jan 1972, so November or December 1971 would be ideal. Price Range, Free to ??? :finga: Fair market value, and condition/completeness will dictate how much I am willing to spend. I am willing to travel or ship for the right block, and if the original VIN stamp is 2B292129, you will be my new best friend :) I would prefer STD core pieces, no offense to anyone or their machine shop, but I like to do my own if possible.

Thanks for looking, and thanks to FABO for the space!!!