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Old 02-08-2005, 06:13 PM   #1 (permalink)
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Windsor head casting number???

OK so I bought a pair of what I thought were cleveland heads at a swap meet. The guy told me they were clevelands so I figured they were. Come to find out, I take them apart and there is a WF casting on them, so I figure that is for Windsor Foundry. So it turns out I have windsor heads now... No big deal. I have looked forever and reasearched head castings and I cant place one casting. The casting is C9OE G. Here is what I know from decoding it for myself. The C = 1960 Decade / 9 = the year / O = Fairlane / E = Engine Department... BUT I DON'T KNOW WHAT THE G STANDS FOR... Any help at all would be appreciated. Thanks alot.
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Old 02-10-2005, 11:11 PM   #2 (permalink)
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Windsor head casting number???

Going by my Ford parts interchange book, it looks like G is the change code suffix. "A" would be the original part, B would be at least one engineering change, etc.

According to the same book looking at 351W heads, I can't find any C90E G casting reference. They stop at D, and then the 1970 heads begin.

I wouldn't be overly concerned - you have a decent set of castings to work with regardless.
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Old 02-14-2005, 01:57 PM   #3 (permalink)
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Windsor head casting number???

if you need casting numbers to tell the difference between cleveland and windsor have problems.

Easiest way to tell is the canted valves on a cleveland head. Second easiset way is to measure valves. The biggest valve that can be fitted in a windsor head is a 2.02 intake, stock they will have either 1.78 or 1.84. The smallest intake valve that fits a cleveland head is a 2.08 I think. Third way, if a tennis ball fits in the intake port, it's cleveland. If its a windsor, fitting your thumb in the port will be a tight fit.

An easy way to find pics is to search on ebay, search for "351 windsor heads" and then search for "351 cleveland heads", you'll see exactly what I mean.
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Old 11-07-2009, 03:52 PM   #4 (permalink)
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Re: Windsor head casting number???

Cleveland heads also have different exhaust manifolds. The bolt holes are catty cornered from each other. Windsor holes are in a straight line just like the 302.
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