Author Topic: Ford vs FOMOCO heater/blower boxes (Read 174 times)

manley · « **on:** January, 18, 2012, 11:22:11 AM »

Since it's too cold to get motivated to do much welding, I've decided to try and clean up my heater box and get it ready to go since I can do that in my basement. The one from my car has some issues I don't want to tackle, so I grabbed two more from the pile of parts at my buddy's house. Each of those have minor problems as well.

As I was disassembling them and making sure they were identical to what I need, I noticed 2 have "Ford" embossed on the outside and one has "Fomoco." I seem to remember reading that Ford changed the designation they used at some point... but I don't remember when? Can anyone tell me what year this change was made? The cases are very nearly identical as far as I can tell, but combining the halves of each does not work perfectly as there are alignment issues.

One had a heater core with a C9 part code and the other had a D1. This makes me wonder, did 71-73 use the same heater box?

One more, would a car that came with AC have a different box?

Thanks! I'm off again today to search for more in the barn in my quest to find one very nice heater box to use!

apollard · « **Reply #1 on:** January, 18, 2012, 12:56:17 PM »

Can't answer the other questions, but from my experience, yes, A/C boxes were different.

manley · « **Reply #2 on:** January, 18, 2012, 01:48:35 PM »

That's what I thought, but I wasn't 100% sure. I scrapped a factory AC car once, but I can't remember if I kept the heater box. I know the firewall cutout is different. I'm referring to 69-70's, BTW.