10.375 x 14" pitch is the factory prop usually and that is what you should shoot for.

Or a 10.375 x 13.25, depending on rpm at full throttle. Max rpm is 5,000 and that is what you should shoot for at full throttle and the lightest load the boat will carry.

You should get to 28, 29 or even 30mph.

You may be over reving that 40 with the brass prop. I bet it's a 12" pitch or lower.

Would be good for towing someone though.

Make sure the foot oil is good. It is probably a good idea to change it.

Just came back from a maiden voyage in a 1956 Ranger 3 of a 1965 40 horse Evinrude. Prop is a bronze 4 blade, ran 25 with surprising launch. Can anyone recommend where to find a prop chatt? I hope to get a little more out of her.

thank-you Mark........as i thank all those as well who have joined me on this rebuild, helping, sharing, and encouragement........again as like all those before , during and after it all stems from the generosity this site shares with one another.....

Jabe,,I just read the whole thread..Very good. The boat turned out Bitchin ! I like Everything about it. The windshield is the best I have seen to date. Even some technocraft mods. Perfect ! Lots of nice original boats out there. But nothing beats kneading one of these to their best esthetic pinnacle . Nice job ,,Perfect finish. Take a break..

Looks good Jabe. Very nice job.

Scoot

thanks John........once sorted out, she did run sweet..was hoping to see a 3 on my speedo.........may yet

Neil, What a great looking boat and it looks like you have it dialed in perfectly.

Looks awesome, it is kind of like getting a preview of mine. Way to go!!!

Boy I bet you are in heaven right now! Nice work Neil. Its been fun watching you work on this boat, you did an outstanding job can't wait to cruise with ya!

Well if we all pull together and bring 5 sets of skies down to AH, I bet Mercury Marc and his hawk can get 5 up all day long....lol...

Nice work Jabe!

Congrats on the maiden voyage! Job well done sir!!!