Cylinder head marking

[Gwill65074]

My head has a diamond logo or marking between the 3 and 4 cylinders, what the heck does this mean?
Thanks

[Railcarmover]

Castings were made under contract by different foundries after model a production ended.A number of different foundry marks have been identified,the 'diamond' mark is highly prized with engine blocks.Are there any other markings? Ford script is another indicator of a service head (heads produced for service after 1931) .The one in the picture shows a 1936 service head I have..its a high quality casting,clearly better than a production head. The L286 casting mark above the water pump boss indicates it was cast 12/28/36

[Gwill65074]

On one of my heads there is a Ford script around cyl 3 and at the water pump there is B117. On the other head, I took a picture of the triangle above cly 3 but I don't know how to post it here.

[Railcarmover]

Originally Posted by Gwill65074

On one of my heads there is a Ford script around cyl 3 and at the water pump there is B117. On the other head, I took a picture of the triangle above cly 3 but I don't know how to post it here.

B117

B = month of casting
11 = 11th day of month
7 = year of casting,presumably the 30's,so 1937

there were a number of foundaries casting for ford,all kinds of marks,triangle,diamond MHC and an assortment of others.I bet that B117 head appears to be a nice one.

[Gwill65074]

Yes it is, really clean

[Railcarmover]

Diamond marked B blocks are the holy grail,the diamond is right above the timing gear inspection cover..If you come across an A or B block with it,grab it..

[Gwill65074]

I've got a fresh one sitting in the garage, it came off a Gleaner, it's a 1937 Rouge production.

[Railcarmover]

You get hankering a build for speed that's the one..

[katy]

The number on the top front of the (used) head that I just installed reads 92447. Would that be September 24 1947?