Home › Forum › Ask A Member › OMC 5.5 vs 6 Driveshafts › Re: OMC 5.5 vs 6 Driveshafts
Thank you for the replies. I confirmed all the cranks are the same spline. Based on the answers and some looking at the parts I have all one piece drive shaft 6 horse motors.
I am going to make my short shaft cd-15.
The long shaft motor is very beat up less the power head and my short shaft has no power head (well it is in a box dismantled by P.O. And is shot)
That leaves me a long shaft lower unit and tower. The long shaft lower has a badly chipped anti cav plate, functional but not dear to me.
Would the cd15 entire lower with the two piece shaft bolt onto the 1971 tower? A Frankenstein for sure but my ultimate goal is to get an ugly but working (free) motor for a sea scouts sail boat. I cannot bring myself to put a cd15 in saltwater, so a cobbled ugly 6 from parts fits the bill….if I can get it long.
I do not think the 6 powerhead will fit on the cd15. Bolts match but water flow is different due to t-stat.
Desperately trying on this one but may be out of luck.