Evinrude 40/50 HP difference

[G DANE]

I have an 1988 40HP Evinrude twin VRO.<br /><br />Now I bought a lot of parts from a 1979 55 HP ( crankshaft HP - later the 50HP model ) that blew the powerhead - rod outside the housing !<br /><br />The question is: will using the carbs from the 55 HP ( 50 ) increase power on my 40.<br /><br />Is there any other difference between 40 and 50.

 

[jegervais]

Re: Evinrude 40/50 HP difference

Maybe, but not that you would notice in "seat-of-the-pants" feel. The 40 and 50 blocks are ported differently and that's where the hp difference mainly comes from. The 50's carb has a slightly larger venturi and is jetted richer than the 40. You'll definately use a little more fuel.<br /><br />-John

 

[G DANE]

Re: Evinrude 40/50 HP difference

Thanks John !