Farmall Cub

Well, we finally tore apart another C that we got a little while back, and the head is a late 50, 12-5-T which means it is a Super C head, right also it has fire crater pistons, and my dad was looking around on ytmag i think he said, and he said that some were offered with Fire Craters, like the high altitude, but here in NH i don't think they are any places high enough for them to be needed... so, my question is there anyway to tell if the tractor came stock with them, i bet that someone put them in, but I was just wondering....

Thanks for any help

Johnny

engine seial suffix if D = 5000 feet, oe D = 8000 feet. also HA or L = high altitued heads.

Thanks John, I will check tomorrow...

Thanks

Johnny