F486R Flat Head, Head has been rebuilt and is ready to bolt on. The first F486R Heads had the screw in water pipe like this one. It will fit G S4250 and up. More pictures avaliable. Phone works best or email direct. signorecylinder@yahoo.com Ph. 570-447-5098

You can't put that head on tractors SN4250-7099 if they have the original block. If you put that head on the early unstyled block, F48R, found in tractors 7099 and under; coolant will fill the crankcase as quickly as you can pour it into the radiator.

Drew, Thanks for pointing that out. After a quick look in the parts book it appears you are correct. So I guess this would have originally been on a G S#7100-9199 If I understand the parts book correctly. The parts book lists the F87 Pipe, cylinder outlet to be used up to S#9199. Sorry if I mislead any one. Thanks Again, Aaron