20' Potter Hull- Prop Size, Zuke 200
 

1972 Hull. We are getting ready to do a repower with a DF200ATXW2. I am doing my research on props. Anyone have any input? From what I have gathered we are thinking a 21. No bracket
Thanks!!

That engine, at 520+ lbs, seems to be a lot of weight for a 20 foot boat. Bracket or transom mount?

Be sure to raise the transom and plug the scuppers !

Heavy Engines and CG Shift
 

Even without a bracket with your heavy engine, you may want to take a few minutes to review my post of 9-24-16, ESTIMATING CG SHIFT with HEAVY ENGINES. It shows how To calculate the CG shift and how you may locate other items to compensate. I chose an ETEC 150 in 2013 because at 418#, it was the lightest option. Extra aft weight does not affect my Seafari as much as yours. Best wishes.

Hi GetLit,

You might already know this but Mercury has a great prop selector online:

https://www.mercurymarine.com/en/us/...or/#!/step-one

Looks like for your boat and engine, anywhere between 19" and 21" pitch would do, depending on what your performance goals and total weight are.

Cheers

So initial test with a 19, shows we are going to need a 21! Batteries and Fuel tank have been moved forward to compensate. Boat only had 40 gallons of gas, no T Top and no LP yet but very happy with where the water line was. Never posted a picture on here but I will try here shortly.