What pulley for flywheel side of engine
 

Guys I have a 63 cub that I'm planning on using a honda 11 hp. What adapter or pulley do I use on the flywheel side for the driveshaft belt. Iv been searching but not sure if I'm look at the stuff. I have the pulley off the original engine but I don't believe that going to work.

Google honda 11 hp engine to cub cadet adapter

Check with these guys to see if they can hook you up with what you need.

https://performancemad.com/