You could, it gets a little trickier switching to a different brand engine.
You got to make sure that you get the motor located in the right position for alignment of the belts and belt guides. Some belts get so picky that they measure down to a 1/64 of an inch in length. So if you were off a little with the motor location, the belts might start slipping right away.
Also you will have to measure the shaft diameter size and style to see if the pulley switching will work.