This is hard to answer based upon the fact that depending upon what mount you use the measurement will be different. With that said maybe information attached will be of help. Also, these motors are getting very hard to come by, and the new 1.15 should rival the power at about 1/2 a pound lighter. I believe the 115 should be out in a month or so..... it's the same size as the .91-1.10. Good luck and hope to see you at the races.
Jimmy Skids