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Cylinder Head Id
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Posted by: Mac

I have a set of heads I took off a '64' Mercury Cyclone many years ago and put away. Confused with the cast numbers and the date code. Date code reads 4F3 (1964, April 3?). The head casting number is C5AE. In the rocker area on the left side it says 289. On the right side it says '65'. Why the difference in the numbers? Only thing I could find close to the casting number is C5AE-E which is for the Hi-Po head.
Dave

Posted by: Mustang5L5

Casting number indicated a '65 engineering part number.

Posted by: Aussie XAXB

Here's a few links worth their weight in gold for you.

http://www.classicmustang.com/casting_numbers.htm

http://www.aacncclub.com/FORD_HEAD_CASTING.html

http://raceabilene.com/kelly/hotrod/engine3.html

Steve

Posted by: Mac

Thanks Steve for the links. Appears my interchange book is incomeplete (or wrong for the '65' castings). That casting date is June 3, not April 3 as said earlier.
Dave

Posted by: Aussie XAXB

You're welcome. I had a link for another great page but that server is not found.

Steve