Beached - here are some links to some previous Jack Shaft talk but it doesn't sound like you would want to do it to an inboard, maybe to a former stern drive or outboard boat but the inboard's running surface is significantly different...
http://www.classicseacraft.com/cgi-b...c;f=1;t=000218
http://www.classicseacraft.com/cgi-b...c;f=1;t=000268