Home › Forum › Ask A Member › Evinrude 5520 Powerhead Vs. Johnson › Re: Evinrude 5520 Powerhead Vs. Johnson
OK, well the Evinrude 5520 is a 1960 5.5hp, that is what you have, correct? This model is a bit unique because it has the port for the fuel pump. I don’t know why later models have a different crankcase number, I would have thought they would fit. In any event, earlier model powerheads will definitely not fit your engine, including the 1959 models without the fuel pump.
You mention that the powerhead appears to be in good shape, just suffers from mouse corrosion. I don’t see any problem in sanding down the affected spots on the powerhead and applying marine tex/jbweld. Finding a decent 1960 intake manifold shouldn’t be difficult or expensive.