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Old 01-15-2020, 10:59 AM   #1
jack wingard
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Default Cracked Head

model a head.jpg

Looking to purchase. Owner states this just happened but I don't think so. Couldn't see any other obvious cracks in the block. Is it possible this is the only one. Yes the engine does run
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Old 01-15-2020, 11:05 AM   #2
abachman3
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Default Re: Cracked Head

Yes, that is a cracked head. It appears that the engine has been dormant for awhile, with the light rusting on the plugs, the head gasket area and around the crack. Stock heads, used are quite inexpensive and not all that hard to install. A used head can be purchased for $50.00 or less.
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Old 01-15-2020, 11:34 AM   #3
chrs1961815
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Default Re: Cracked Head

I would be concerned about a block crack but you won't really know until the head comes off. It depends how the crack was caused, if water froze inside or not.
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Old 01-15-2020, 11:35 AM   #4
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Default Re: Cracked Head

Also consider upgrading to a 6:1 head, since you're taking the head off anyway. Best performance upgrade for the Model A, dollar for dollar.
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Old 01-15-2020, 12:31 PM   #5
Kurt in NJ
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Default Re: Cracked Head

Glue it with jb weld and fill system to look for other problems, it froze in the past
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Old 01-15-2020, 12:39 PM   #6
barry022
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Default Re: Cracked Head

It's amazing that with modern anti-freeze available that people allow engines to freeze-crack.
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Old 01-15-2020, 01:47 PM   #7
jack wingard
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Default Re: Cracked Head

Quote:
Originally Posted by barry022 View Post
It's amazing that with modern anti-freeze available that people allow engines to freeze-crack.
Owner states "Snyders" told him run straight water. Just makes me wonder what kind of bull he can come up with.
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Old 01-15-2020, 01:59 PM   #8
J Franklin
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Default Re: Cracked Head

Quote:
Originally Posted by jack wingard View Post
Owner states "Snyders" told him run straight water. Just makes me wonder what kind of bull he can come up with.
Straight water with soluble oil is what I use but it should be drained in the winter if there will be freezing temps. Antifreeze tends to seep and leak and can cause real problems.
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Old 01-15-2020, 02:14 PM   #9
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Default Re: Cracked Head

I have used antifreeze in all of my cars for 58 years ... old one, Model As and modern ... 700,000 miles

NEVER had any problems caused by the antifreeze NEVER.


Never had one freeze either!


Drive them year round here...


FYI


The head is not the only part damaged.


Many times the roof of the valve chamber is cracked or broken out.


This is not a cheap simple fix .. It is a $3500 or $4500 cost ... just saying.


All of this to save a couple of gallons of antifreeze!

Last edited by Benson; 01-15-2020 at 03:23 PM. Reason: see blue
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Old 01-15-2020, 02:44 PM   #10
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Default Re: Cracked Head

Used heads are cheap,picked up a couple at hershey $10.00 ea,nobody wants to carry them.
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Old 01-15-2020, 05:10 PM   #11
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Default Re: Cracked Head

There are thousands and thousands of people who have replaced their standard head with a high compression one. Each time that is done, a (usually) decent standard one is removed. I can't see them being anything but cheap and plentiful. I have at least 2 in my shed.
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Old 01-15-2020, 08:15 PM   #12
David R.
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Default Re: Cracked Head

I would price that engine at what the parts would be worth less the block and head. Very possibly the block is ruined if head froze.
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Old 01-15-2020, 10:51 PM   #13
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Default Re: Cracked Head

Its not too difficult to check it out to see if there are more cracks. I had a Model T that had a similar head crack when I got it, nothing else was damaged.
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Old 01-16-2020, 01:30 AM   #14
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Default Re: Cracked Head

Re the head gasket area and around the crack.
That area along the head and block looks to be copper-coat not rust.
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Old 01-16-2020, 03:23 AM   #15
Dodge
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That’s a very nasty crack in the head, it was probably quite frozen.
I would look long and hard all the way around the water jacket in the block, front sides and back, look up along the bottom of the water jacket all the way around.
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Old 01-16-2020, 03:34 AM   #16
ronn
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Default Re: Cracked Head

NEVER had any problems caused by the antifreeze NEVER.


can show you a pair of 1937 aluminum Cord heads that rotted from the inside out, due to antifreeze...............................


I just replaced a bad head on an A I bought. rest of engine is fine. huge chunk of top of head missing, due to no antifreeze.
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Old 01-16-2020, 09:15 AM   #17
vernon
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Quote:
Originally Posted by jack wingard View Post
Attachment 418926

Looking to purchase. Owner states this just happened but I don't think so. Couldn't see any other obvious cracks in the block. Is it possible this is the only one. Yes the engine does run
Jack I'm in Titusville have a few heads call 814 8 two77 six 0 one


Vern Barker
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Old 01-16-2020, 12:48 PM   #18
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Default Re: Cracked Head

"I have used antifreeze in all of my cars for 58 years ... old one, Model As and modern ... 700,000 miles. NEVER had any problems caused by the antifreeze NEVER. Never had one freeze either!"



AMEN !
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