Prop size?

Discussion in 'Boating' started by riddleofsteel, Apr 29, 2007.

  1. riddleofsteel

    riddleofsteel New Member

    Due to an encounter with a large rock I need a new prop.

    The engine is a 2002 Honda four stroke 25 HP. The OEM prop is 9 1/4 x 12.

    Most if not all of the Honda props I see for sale (even from Honda) are at least 10's. The smallest I have found is 9 9/10 x 12.

    I have 5 3/4" between the center of the output spline and the cavatation plate so a 10 seems like it would fit with 3/4" clearance.

    My question is that enough clearance?

    What, if any difference will a 10 as opposed to a 9 1/4 prop make on over all performance?