Swapping power head

[Nicola]

Hi big fan of this site I don post much but I read a lot, many useful information...
My question is: is it possible to swap power head of 1977 35 hp evinrude 35703h with a good running power head from 35 hp johnosn j35elcig...
I do have manual for the johnson one to help out...
Any advice will be very appreciated TY
Nicola

 

[Daviet]

Re: Swapping power head

Do they both use the same base gasket?

 

[Nicola]

Re: Swapping power head

Not sure about what you mean by base gasket

 

[Daviet]

Re: Swapping power head

The gasket between the power head and the exhaust housing, if they are the same there is a chance that they will interchange. Some other things need to ckecked to be sure.

 

[Nicola]

Re: Swapping power head

The part # is different but from looking at diagram the 2 parts look like they are the same...
Does evinrude use a different way to catalog their parts??
Maybe because is much older numbers just changed??
I dont know if it helps I do have exhaust from the johnson too except the lower unit...

 

[Daviet]

Re: Swapping power head

By looking at the parts breakdown for both engines it looks like the exhaust housing has a different part number also, don't think they will interchange. You could look in the "Top Secret File" sticky, there is a list of salvage yards there, give one of them a call and see if they have an interchange guide, maybe they can help you out.

 

[Nicola]

Re: Swapping power head

k tnx man

 

[Daviet]

Re: Swapping power head

Let us know what you find out, someone else might be trying to do the same thing.