I'm sure the balancer you need to be correct, has got the big weight mounted on the front of the balancer. On the face of the balancer, it should be casted in there, should say ( for 360 cast crank motor). Hope this helps. Either try Ebay or push the search tab on the top of home page and seach, 360 Balancer. Ive seen some on this site sometime's. Good Luck.