440/550 Engine Service

Im in the process of rebuilding a 1990 Kawasaki JS440 and I was wondering who is the "go-to" for 440/550 cylinders? I have experience on my 701 with Harry Klemm at GroupK and the results were fantastic. Any other 440/550 guru's out there? I have other 550's/750's I will be working on in the future also but this is the project for now.
 
Top Bottom