Ok,this is awesome. After scratching some of the red paint off no doubt, the serial number on the block is BNO 40 3180. It is also painted a blueish grey underneath.
The casting number on the hydraulic pump is 9N 605 A2. (Jan 1942?) I know this mix-mash of parts might not be ideal from a collectors stand point, but to me it is awesome to think that the motor now grading my roads may have been pulling Hellcats, or B-17's at one time. To me, it makes the tractor even cooler. The radiator may not be original as it fits, and even has the indentation on the bottom for the hand crank but the filler and cap did not line up so someone cut the hood opening into a circle to acommodate, It should have been a tear drop opening I believe.)
I did not see a date tag near the starter, and on the axle trumphets where the fenders attach there is A48 and A51 (which I guess means Jan 1948, 1951?) So this tractor does appear to have been assembled by Johnny Cash.
I was going to repaint it all dark grey as the 2Ns came, but now I think, since there is no exact way to date this, no need to be a purist. I may paint the main body Flathead Ford engine block green w/ tan fenders and hood. I saw a 1939 9N painted this way and thought it looked good. Hope that doesn't make the rest of you cringe too much.