Source(s) for rebuilt engine for 1930 Model A

[KHS64Dan]

Recently re-acquired 1930 Model A. Head was removed mid-1960's, and had sat in garage until last few months, mechanic states motor is basically one solid piece of metal, and must be replaced. I wish to put back "original" motor vice slipping in a "hot-rod" motor. Requesting possible source(s) for rebuilt motor.

Thank You