Reply To: 303977 cylinder head evinrude 25hp

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October 8, 2020 at 6:07 pm #218165
The red boat
Participant

    wow!!
    great information!

    I have a NOS 55 RD-17 cylinder head (like yours) in the box I can use for this Evinrude. It is a 25920 motor which is a 55 25hp evinrude.
    will it work or is there anything it will mess up?

    That Evinrude block is indeed on my 55 Johnson. I got it cheap and it has great compression so I’m using it until I get time to tear down and rebuild the original Johnson block that came with it.
    Good eye!