Conversation Between SigMan and DG Miller

I have a couple of Saito Engines a 56 and a 91. I am wanting to stay with Saito as I like them and want to add another to a Sig Somethig extra, really wanted to find a reasonably priced 56 but it looks as though I will need to good with a 62. Can anyone tell me if the 62 will match up with a 56 motor mount?