[rcodemach1]

I assume it would since they have the same castings, unless you find a late 2004 or 2005 Aviator; those should have the "DC" heads which are supposedly have better cooling.

After I lifted a ring land in my original motor, I bought an 86k Aviator motor from LKQ. I went through it completely and was able to just clean everything in the bottom end and reassemble. The heads needed a bit more work though. The valve guides all measured great except the exhaust guides of cylinder 6 and cylinder 8, which are on the driver's side. Those were worn about 2 thousandths, which is not horrible.

Based on the plugs and the amount of carbon in the chambers, those cylinders were not burning oil. But I replaced those 4 valve guides anyway.

This is a backup motor for my Mach. It's in the car now, seems to run well and doesn't seem to tick or smoke.