I have a Stainless Steel 3 blade prop, 19" pitch gives a good hole shot. my 90 hp Mercury will jump up on plane with it. like new 140.00 cash fits a Mercury, Yamaha, and Honda from 75 hp to 130 hp. with 15 splines. it's just lying here in garage collecting dust, it needs to be on a boat engine somewhere. did I say it was like new.