Prop recomendation? Engine swap

starsnstripers

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Nov 30, 2007
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1,330
Have 1986 Fourwinns 21.5"cuddy, Swaped 230 hp 305 SB gm to a newer vortec 350 SB close to 300hp. Alpha one Merc drive. The boat has a 17* with the engine swap what should i go to a 19* or 21* Boat weighs 3200 lb dry weight. WOT?
 
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Bondo

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Apr 17, 2002
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71,079
Re: Prop recomendation? Engine swap

Hey Scotty,... Did ya try it with the 17",..??
It's really a Toss Up,...
Ya gotta try something on it to get a baseline of rpms at Wot...
My Guess is, she'll probably pull the 21"...

Btw,... I Love the avatar,...;)
 

starsnstripers

Lieutenant
Joined
Nov 30, 2007
Messages
1,330
Re: Prop recomendation? Engine swap

Ha, Yeah it's a rare avitar, LOL. Yeah we'll try the 17 but i have my doubts, atleast 19* maybe a 21. Just wondered what others with similar setups run. Thanks though.
 
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