Prop Recomendation - Swapping a 4.3lx to a 350

Shea_G

Seaman Apprentice
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Apr 22, 2014
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45
The boat is a 21' regal, it had a 4.3lx mercruiser and Im putting is a 1996 suburban vortec 350. It has a alpha 1 drive and the gear ratio of the 4.3 is different than the 350. Im going to reprop instead of regear. Ive heard another guy that did the same swap and ran a 4 blade bravo 1 14 3/4" x 25". Know next to nothing about props so looking for some recommendations. Thanks.
 

Bondo

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Apr 17, 2002
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70,525
The boat is a 21' regal, it had a 4.3lx mercruiser and Im putting is a 1996 suburban vortec 350. It has a alpha 1 drive and the gear ratio of the 4.3 is different than the 350. Im going to reprop instead of regear. Ive heard another guy that did the same swap and ran a 4 blade bravo 1 14 3/4" x 25". Know next to nothing about props so looking for some recommendations. Thanks.


Ayuh,.... so what prop worked best with the 4.3l motor,..??

Ya gotta start somewhere,....
 

Shea_G

Seaman Apprentice
Joined
Apr 22, 2014
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45
Unfortunately I dont know. Just got the boat so dont know if the prop on it was the right prop for the boat
 

Shea_G

Seaman Apprentice
Joined
Apr 22, 2014
Messages
45
Any guesses here. Something close so I can tune it from there? I was thinking a 25" 3 or 4 blade aluminum
 

Bondo

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Any guesses here. Something close so I can tune it from there? I was thinking a 25" 3 or 4 blade aluminum

Ayuh,.... That Might be enough,.... If not, have the Prop Shop beat in alittle more cup,....
 
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