Reply To: 1972 Merc 110 9.8hp Prop

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February 9, 2019 at 9:22 pm #166479
20mercman
Participant

    Yes, 68 and newer used the 8 spline prop shaft. You can contact Dave McHenry at Gainesville Radiator in Gainesville GA. He runs a great prop shop and can give you a real price. It all depends upon the weight you are going to load this motor up with, but I always suggest a 7P three blade for most applications vs. the 2 blade 9P. These motors (like most Mercury’s) develop horsepower with RPM. Don’t over prop a Mercury and it will love you for it.

    Steve