Anyone specialize in SF 23 Inboard Specs?

[blunas2188]

I am wondering if there is anyone who owns or simply knows about the 23 foot SF inboard Seacraft. I recently bought an original potter built 23 footer - http://www.classicseacraft.com/SF23inboard.htm - that has a straight shaft. As of now I have a 1989 235 hp V8 gas inboard with a 1.25'' shaft. I am looking to re-power with a 200+ hp diesel. does anyone know if I would be able to put a bigger shaft, possibly a 1.5" instead of the 1.25"?

If anyone has any experience with this type of set up, help would be greatly appreciated. THANKS