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has anyone installed Yanmar 440's or other high powered diesels in a B31?

If I were to replace gas engines in a B31 with Yanmar 315's, what would the approximate cost be?

Thanks Patrick

I don't know much about the bertrams, but after seeing a 31 in the water I must have one!

Is the B30 as sea worthy and rugged as the B31?

I am looking to buy a new boat and thought you guys could help.

I really love the classic 31's, but also considering a mid eighties 30' Bertram.

What are the major differences?

Any advice or opinions are appreciated.

Thanks in advance,


Timmy D.