Head Label

doug.nichols

doug.nichols

Senior Member
Does anyone have a guess as the origin of the head shown in the attached picture? One stamping/label says "MADE N U.S.A" and the other one says "2-28-33".

Thanks:
 

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Could be any one of the various after-market foundries making replacement heads for the Model-A during the 1930's. Sears Roebuck, Montgomery Wards, Western Auto, etc. sold Model-A parts well into the 1960's.
 
A compression check will let you know if the head is high compression or not. Add a little oil to the cylinders first to remove the rings from the picture. The stock head will produce about 50 psi and a high compression head about 90 psi.
 
Look at the front of the head, on the lip below the water outlet. Is there any markings on there?
 
No markings on the lip below the water jacket. Compression is around 50. So, unlikely that this is a high compression head.
 
Ford outsourced casting for the model A after regular production stopped and same with cylinder blocks. This is where the diamond blocks came in. They kept building the model A engines on a separate line till 1941 for agricultural products and industrial applications. The late B engines had the C head but even they eventually went out of regular production.

Most aftermarket heads were for higher compression applications.
 
I have one just like it except mine says 43 I think instead of 33. It is a low compression stock model A head.

Mike
 
I had one of those, very similar looks & date. My Dad had told me once it was a higher compression head because the chambers were more heart shaped than round? I didn't really need it so I let it go.
 
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