Re: evinrude 30hp 17' lowe WHAT Prop??
I assume that your Evinrude is modern 30hp, not a 1956 model. Still, the same prop size logic would apply. <br /><br />The old props were something like 10" diameter X 10" or 11" pitch for a large boat, so I would guess that a pitch of 10 or 11 would right for your boat.