Please verify my prop selection.

[Fishpoop]

I have a 1972 6-hp Evinrude Fisherman and I want to replace the prop from a 2 blade to a 3 blade. I think the stock prop is a 2 blade 8x7-1/4. I found on iboats a quicksilver diamond prop #QA3178R 8x7 3 blade. Am I correct if I get this prop? Will there be any performance or mechanical issues on the outboard if it was orignally issued with a 2 blade?

 

[steelespike]

Re: Please verify my prop selection.

Yes 8 X 7 is a stock size for a 3 blade.Should be no problems.However Your final size may depend on the boat and typical load.

 

[CATransplant]

Re: Please verify my prop selection.

That prop should work just fine, as long as it fits. You may benefit from a bit more push when you first take off, but your top speed probably won't change. I'm not sure exactly they switched to the three-blade prop, but my '92 certainly came with one.