40hp evinrude

[htl955]

What options are available to modify my 1985 40hp evinrude to 50 or 60 I understand there powerheads are the same

 

[jimmbo]

They may share the same displacement. They may or may not share; Blocks, Heads, Pistons, Reeds. Exhaust Tuning, Carbs, and some other parts. It is usually far easier just to get a higher HP engine, than to try hopping an engine up, usually cheaper too.

 

[juno pierrat]

have thought about this also, looking at parts break downs, one big difference is high speed jet size, but have wondered if the carb throat sizes are the same,

 

[gm280]

If you are looking at parts break down, see if the carb bodies are the same part number. There are carb part break downs and your answer is there...

 

[flyingscott]

This question has been answered in your other post. Time for you to do one research!!