The Ford Barn

sshep · 04-02-2023, 07:27 PM

These appear to be cast iron aftermarket 21-Stud cylinder heads.

They are stamped FOM, 8-17-43, and Made in the USA.

Any information on them would be appreciated. Who made them? Were they actually manufactured during the war? Was this for a military application or strictly just an aftermarket replacement head?

38 coupe · 04-02-2023, 07:32 PM

That is an aftermarket replacement head. Combustion chamber looks like a copy of the standard Ford 1937 chamber.

All era Ford heads I remember looking at have a much cleaner cast surface and better controlled bosses where the head studs holes are drilled.

petehoovie · 04-02-2023, 08:38 PM

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Quote:

Originally Posted by sshep

These appear to be cast iron aftermarket 21-Stud cylinder heads.

They are stamped FOM, 8-17-43, and Made in the USA.

Any information on them would be appreciated. Who made them? Were they actually manufactured during the war? Was this for a military application or strictly just an aftermarket replacement head?

04-02-2023, 07:32 PM	#2
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 1,631	Re: 21-Stud Cylinder Head ID Help needed That is an aftermarket replacement head. Combustion chamber looks like a copy of the standard Ford 1937 chamber. All era Ford heads I remember looking at have a much cleaner cast surface and better controlled bosses where the head studs holes are drilled.