73
I just got a 73 with a rebuilt motor, its a good runner. Lets see some pics of yours !! I believe the biggest motor without modification to the frame you can put in there is a K301 12hp motor. I am sure someone with more knowledge will chime in !!!
__________________
1969 Cub Cadet 127
Cub Cadet HDS 2155 w/ bagger
#2 IH cart
48" deck
42" Front Blade
Brinly Sleeve Hitch and Brinly Plow
IH wheel weights 
|