Home › Forum › Ask A Member › Best years for OMC 10 horse? › Re: Best years for OMC 10 horse?

#38605
frankr
Participant

    The larger wrist pins with "real" bearings came out in 1961. Last year for the 10 was 1963. So there ya go–3 years to pick from if you want the good wrist pin design. HOWEVER, the improved parts can be retrofitted into the older models. You have to change pistons, circlips, wrist pins, wrist pin bearings, and connecting rods. Do that on one with the big pre-’58 gearcase and have one tough motor.