Home › Forum › Ask A Member › Merury Mark 55, 1958 lower unit, small studs, to big studs › Re: Merury Mark 55, 1958 lower unit, small studs, to big studs
September 2, 2017 at 11:39 pm
#64208
Not sure with your 4 cylinder but Merc made stepped studs for early in-line 6’s to swap gearcases, might check it out,
Call Joe Poole, he knows,