Propeller match?

[OMCEd]

Can i run a 389510 13 X 19 SS prop on a 1989 2.3L OMC I/O. I have a 17 foot Sunbird bowrider weight 2000 lbs. The specs call for a 389512 12 3/4 X 21.
What would it do to my RPMs if I did use the prop? Thanks, Ed

 

[steelespike]

Re: Propeller match?

What is the present prop? al. or ss.21"?If both are ss the 19" will raise your rpm "about"300-400rpm.hole shot will improve.If you ski or carry heavy loads it will do better.Check that it doesn't exceed max rpm at wot(wide open throttle).
Just throttle back a little.
If you give us your present prop size,material, and the max rpm and speed
we may be able to tell better where your at.