Re: 1950's 5.5 hp what's it worth?
What they're worth depends on who is selling them & buying. If the person selling them isn't an outboard hobbiest...they're worth $100s! The beginner outboarder will spend that money because they do not know the values either.
Those particular motors are very common and are a good motor to begin the hobby. Being said, go to a antique outboard motor meet and you will find someone who will sell you the motors for around $30 each if it has not been completely gone through.
Basically, the price is low because you do not know what you're getting into. Impellers, LU gaskets sets, coils, points...you're already into it for $150 plus dollars...not to mention possible compression issues!
So, if you buy the motor for $100 and put $200 into it...is it worth $300?? Nope!! But that again depends on who you sell it to!
Mas