Cylinder Head Part Number Location - Can't find it

RTR · Jun 28, 2017

I have a few heads I'm trying to identify and one of which I can't locate the part Number for it. I believe it came from a Farmall 100 or 140 tractor but can't find the number to verify. Older Super A tractors have the head part Number right on top on a flat place but this head doesn't have that spot. If anyone here knows the location of the part Humber hat would be helpful.

Also, are the heads for the Farmall 100,130, and 140 all the same since they all have a C-123 engine?

haytedder · Jun 28, 2017

I have an A and a 130, and the difference is water pump or not. Same C-123 block, but older heads not under pressure use different gaskets. The older SN is cast outside valve cover, newer inside valve cover.
Also, my other difference was center water jacket hole was oval (no water pump) near manifold side, while the newer one had two holes I think. Look online to see gasket sets to see the difference. That might
help?

RTR · Jun 28, 2017

(quoted from post at 23:34:15 06/28/17) I have an A and a 130, and the difference is water pump or not. Same C-123 block, but older heads not under pressure use different gaskets. The older SN is cast outside valve cover, newer inside valve cover.
Also, my other difference was center water jacket hole was oval (no water pump) near manifold side, while the newer one had two holes I think. Look online to see gasket sets to see the difference. That might
help?

Here is what I am looking at.....

Older Head guessing its from an A or SUPER A with C-113 engine

2nd...this is he head in question that I can't find the part Number

Third.....this is the head on a 1968 Farmall 140 I re-did.

BarnyardEngineering · Jun 29, 2017

You're not exactly searching an area the size of Montana, so if you can't find a part number you can be reasonably sure that one was not cast into that particular head for some reason.

Flip them over. I do know that a 240 head has a much shallower combustion chamber than one from an A, Super A, C, etc.. If the mystery head has a shallower combustion chamber it is from a newer C123 engine, possibly a C135. The C153 has a 13-bolt head if I'm not mistaken, and this is only a 9-bolt head so it would have had to come from an earlier engine.

RTR · Jun 29, 2017

(quoted from post at 16:38:12 06/29/17) You're not exactly searching an area the size of Montana, so if you can't find a part number you can be reasonably sure that one was not cast into that particular head for some reason.

Flip them over. I do know that a 240 head has a much shallower combustion chamber than one from an A, Super A, C, etc.. If the mystery head has a shallower combustion chamber it is from a newer C123 engine, possibly a C135. The C153 has a 13-bolt head if I'm not mistaken, and this is only a 9-bolt head so it would have had to come from an earlier engine.

Yeah, thanks for the reply. I just thought someone here might have known where that number was cast without me having to clean, take apart and search. I will check them with their respective head gasket and also look in my stock of rebuilt heads to see if I have one of each that might be labeled from the shop. I appreciate the input. Just have to find time to get in there and look.

Cylinder Head Part Number Location - Can't find it

RTR

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haytedder

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RTR

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BarnyardEngineering

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RTR

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