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06-11-2020, 08:49 PM
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#1 |
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Senior Member
Join Date: May 2010
Location: Lexington, NC
Posts: 1,014
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'49-'53 8BA or 8CM Heads
Does anyone know of a chart with the compression ratio of all of the '49-'53 stock Ford and Mercury heads? Better yet, is there any particular version that is better than another?
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06-11-2020, 09:14 PM
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#2 |
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Senior Member
Join Date: Oct 2018
Location: The Thumb of Michigan
Posts: 107
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Re: '49-'53 8BA or 8CM Heads
Here's some reading for you. Doesn't exactly answer your question, but gives you some history.
Mike http://myflatheadford.com/know-your-1948-1953-head/ |
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06-11-2020, 09:46 PM
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#3 |
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Senior Member
Join Date: May 2010
Location: upstate SC
Posts: 3,000
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Re: '49-'53 8BA or 8CM Heads
EAB or EAC have highest stock compression
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06-12-2020, 12:50 AM
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#4 | |
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Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,818
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Re: '49-'53 8BA or 8CM Heads
Quote:
EAB yes, but not EAC! EAC are Mercury heads, which have significantly larger combustion chambers to keep the compression down on the larger 4" stroke Merc engines. |
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06-12-2020, 08:07 AM
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#5 |
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Senior Member
Join Date: Dec 2014
Location: Columbus, IN
Posts: 1,589
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Re: '49-'53 8BA or 8CM Heads
There is a table in Joe Abbin's book, "Ford & Mercury Flathead V-8 Identification and Rebuilder's Guide" that shows the characteristics of all the stock cylinder heads, table 7-1 on page 7-3. There are seven different cylinder heads listed for the third generation flatheads.
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06-12-2020, 08:54 AM
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#6 |
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Senior Member
Join Date: Jan 2012
Location: Lyman,ME.
Posts: 2,888
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Re: '49-'53 8BA or 8CM Heads
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__________________
I'm thinkin' about crankin' My ragged ol' truck up and haulin' myself into town. Billy Joe Shaver…RIP |
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06-12-2020, 10:21 AM
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#7 |
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Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
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Re: '49-'53 8BA or 8CM Heads
Go here to see and download the complete chart----
https://www.jalopyjournal.com/forum/...le-pdf.997315/
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES |
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