What props for Volvo SX to DP Conversion

[air0msw@yahoo.com]

Looking to see which props I would need. I am changing from a Volvo SX to a DP outdrive. It is on a 2001 Glastron 26' cruiser with a 5.7. It had a 15 X 17P prop on the SX. Would I need a F4, F5, etc? Appreciate any information.