Hi JPB111
It can be done. The Python has a narrow fuse and belly pan. By the time you cut out the pan for the motor and exhaust there is not much meat left. I had a YS 120sc and the wrap around header meant I had to cut lots of the pan away. With the OS 160, or any side exhaust motor, try to get a header that fits snug to the exhaust. Carl Muller custom makes such an item.
kiwipaul