[Brian]

Yes, it looks to me to be an 81A- 1938 engine, going by the cast #, however, the unusual thing about it is the big, square protrusion off back of Bellhousing where the oil pressure ports are; the big square design is normally post war, the pre war engines normally had considerably smaller protrusion in this area. Just shows...when it comes to things Ford, there is no hard and fast rule!