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09-26-2014, 03:05 AM | #1 |
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Join Date: May 2014
Location: Wilkinson, IN
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cast # on model a head
Have a model a ford head with MF1 cast in the top also dated 5 24 48. Any info?
Partsfather |
09-26-2014, 09:34 AM | #2 |
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Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,115
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Re: cast # on model a head
A picture of both sides of the head would be helpful.
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Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
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09-26-2014, 05:51 PM | #3 |
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Join Date: May 2010
Location: Spokane, WA.
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Re: cast # on model a head
MF stands for Michigan Foundry - a supplier of after market parts. The MF1 I think had a compression ratio of 5.5 or maybe 5.1. The MF2 had a ratio of 6.1 or 6.2. They were high compression heads but I don't remember the ratios exactly. Like the "police heads" they have the heart shaped combustion chamber.
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Larry Seemann |
09-27-2014, 09:03 AM | #4 |
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Re: cast # on model a head
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The compression ratio will be higher when the engine is running because there is a dynamic pressure not acting during the compression test. However, the cylinder head's compression ratio is determined with the engine not running.
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Bob Bidonde |
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