Cylinder head marking

Gwill65074

Gwill65074

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

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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.
 
Gwill65074 said:
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.
Click to expand...


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