Darn it, Jerry
Now you are causing me to take to NC the 1954 235 that has a long crack in that location. That engine is from a Hydra-Matic 3100 and "numbers matching" make a difference (I have the Hydra-Matic transmission).
I wanted a spare matching engine/transmission (for the H-M pickup we are "restoring") but was disappointed when I saw that long crack in the lower left-side block.
Thanks,