Re: 1956 evinrude 30 hp

[frankr]

The 30hp powerhead should bolt up, but the carburetors may be different bore size (not sure). I believe the air silencer is different also but that shouldn’t be a big deal. 30hp used 6V starters, and 35hp used 12V. Starter mounting brackets are different because of that. These are just a few of the differences that readily come to mind.

Before you mount the 30 powerhead, look at the bottom crankshaft seal. If it is a carbon seal with a spring, all is good. If it is a regular lip-type seal, those gave a lot of trouble and you should put in a new one, just in case. The design was a mid-year change