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.
if you need casting numbers to tell the difference between cleveland and windsor heads......well...you 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.
Different areas create different values. Out here in Ca , the price of '69 351W heads goes from $100 for cores to $750 for ported , big valve , stud and guide plated heads. (used) . Out here they are not hard to find yet and most opt for aluminum heads anyway.
They don't flow as much air as the aftermarket iron heads ( Roush , World, RHS, Ford "N") A "good" C90E head will flow about 240 fully ported. SEVERAL lower performance aluminum heads flow that AS CAST. By the time you port , stud, and big valve a set of iron Windsor heads , you could have bought aluminum heads.