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Old 10-29-2019, 02:59 PM   #1
37 Coupe
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Default Canadian cylinder head difference?

I took the head off of an engine today that I have had for awhile to check the bore etc. So it is a Canadian block serial # is CA 84810 and my question is were the heads made different in some ways to run warmer? Hopefully the picture below will show the coolant passage in the center is blank,not an open oval shaped hole as is the gasket and couple other heads I looked at.It may look like it in the picture but it is not brazd or filled in it is solid cast iron. I do know that the engine when I got it had another feature or two that was original for cold weather operation like a tall oil breather cap I researched at the time.
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Old 10-29-2019, 03:05 PM   #2
Bob C
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Default Re: Canadian cylinder head difference?

The earlier heads did not have the oval hole, it was added in late 1929.


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Last edited by Bob C; 10-29-2019 at 03:14 PM.
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Old 10-29-2019, 03:17 PM   #3
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Default Re: Canadian cylinder head difference?

Quote:
Originally Posted by Bob C View Post
The earlier heads did not have the oval hole, it was added in late 1929.


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Might not want to use it as is if Ford saw the need to change,correct? Wouldn't take much to open it up.Head looks good and meaty.
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Last edited by 37 Coupe; 10-29-2019 at 03:24 PM.
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Old 10-30-2019, 03:13 AM   #4
dave in australia
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Default Re: Canadian cylinder head difference?

Wow, that number is only 60 away from my dads A, down here in Australia.
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Old 10-30-2019, 08:45 AM   #5
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Default Re: Canadian cylinder head difference?

Was the oval hole plugged? Your photos show evidence that it was.
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Old 10-30-2019, 10:48 AM   #6
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Default Re: Canadian cylinder head difference?

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Quote:
it is not brazd or filled in it is solid cast iron.
.....
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Old 10-30-2019, 11:16 AM   #7
Jim Brierley
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Default Re: Canadian cylinder head difference?

Bob, I think that is just corrosion from contact with water?
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Old 10-30-2019, 11:41 AM   #8
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Default Re: Canadian cylinder head difference?

Yes,because the copper gasket has the hole in it.
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Old 10-30-2019, 01:01 PM   #9
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Default Re: Canadian cylinder head difference?

Gaskets are made to fit the greatest number of applications. Can't add the hole but if you don't need it it's not a problem.
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