The Ford Barn

Model A Ron · 01-01-2023, 08:18 PM

I have a head on a 28 engine that has 06-4 cast into it. Does anyone know if this is a high compression head and if so what is the compression?

Thanks

ModelA29 · 01-01-2023, 09:57 PM

That looks like a date code June 1934???? Model B head??? 3 bolt (Model B) or 4 bolt (Model A) water pump?

Model A Ron · 01-01-2023, 11:46 PM

Quote:

Originally Posted by ModelA29

That looks like a date code June 1934???? Model B head??? 3 bolt (Model B) or 4 bolt (Model A) water pump?

The guy I got my 28 pickup project from said it was a Model A High Compression head but the current Snyder's 5.5 and 6.0 do not have a code cast in the head. Does anyone know for sure if this is a Model B or Police head? If so what was the compression on them?

As for the engine it is a 28 and from the looks of things it does not appear to be re-stamped......do not ask me how I know lol

jeepguy1948 · 01-02-2023, 11:37 AM

You need to answer the question, does it have a 4 bolt water pump or a 3 bolt water pump? That will tell you A or B

Model A Ron · 01-02-2023, 06:31 PM

It's a 4 bolt water pump.

jeepguy1948 · 01-02-2023, 10:16 PM

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In that case it is a Model A head, beyond that I can’t say.

Model A Ron · 01-02-2023, 11:01 PM

Quote:

Originally Posted by jeepguy1948

In that case it is a Model A head, beyond that I can’t say.

I have a feeling it's an aftermarket head produced in 19?? with a compression of ?.??

Bob Bidonde · 01-03-2023, 09:07 AM

Your cylinder head is an aftermarket service part that was cast by a forging shop in June of 1940. I have had several heads with casting dates on them, and they have all had the stock compression ratios, 4.2:1 for the Model "A" and 4.6:1 for the Model "B". There is no apparent feature on the current 5.5:1 and 6:1 reproduction heads that shows them to be other then stock.
If the water pump attachment has 4 holes, the head is for a Model "A". If the head has 3 water pump attachment holes, it is for a Model "B".

Y-Blockhead · 01-03-2023, 11:13 AM

Quote:

Originally Posted by Bob Bidonde

There is no apparent feature on the current 5.5:1 and 6:1 reproduction heads that shows them to be other then stock.

The Snyder 5.5 has two dots on top and is physically smaller than the stock head. Don't know about the 6.0 as I don't know anyone that has one.

4bangerbob · 01-04-2023, 06:24 PM

The model A head with a large cast B on the top of the head is the police head. This head uses the 4 bolt water pump.

The Model B head has a large C cast on top of the head and uses the 3 bolt water pump.

Dodge · 01-05-2023, 12:27 AM

Do a compression test and give us the numbers, if their all even we can take a WAG
(wild ass guess)

01-01-2023, 09:57 PM	#2
ModelA29 Senior Member Join Date: Sep 2022 Location: SoCal Posts: 619	Re: What is this Head That looks like a date code June 1934???? Model B head??? 3 bolt (Model B) or 4 bolt (Model A) water pump?

01-02-2023, 11:37 AM	#4
jeepguy1948 Senior Member Join Date: Jan 2022 Posts: 746	Re: What is this Head You need to answer the question, does it have a 4 bolt water pump or a 3 bolt water pump? That will tell you A or B

01-02-2023, 10:16 PM	#6
jeepguy1948 Senior Member Join Date: Jan 2022 Posts: 746	Re: What is this Head Sponsored Links (Register now to hide all advertisements) In that case it is a Model A head, beyond that I can’t say.

01-04-2023, 06:24 PM	#10
4bangerbob Member Join Date: Jun 2013 Location: Alberta Canada Posts: 36	Re: What is this Head The model A head with a large cast B on the top of the head is the police head. This head uses the 4 bolt water pump. The Model B head has a large C cast on top of the head and uses the 3 bolt water pump.

01-05-2023, 12:27 AM	#11
Dodge Senior Member Join Date: Nov 2011 Location: Sonoma, CA. Posts: 1,507	Re: What is this Head Do a compression test and give us the numbers, if their all even we can take a WAG (wild ass guess)