I have a '76 merc 1150 on my V-20 CC and it pushes her very well.... planes almost instantly with IIRC a 15 pitch prop.... I don't have a top speed number for ya though..
Before you spend a penny on digging up a 35 year old used shaft extension kit, look HARD at the wiring harness on the motor.... they rot and aren't cheap... ALSO look at the wires coming out of the stator... they rot too and then require a new stator... also not cheap.... while you are at it before you run that engine do a compression test, go through the carbs, and DEFINITELY do a link n synch.
If she's healthy now you have a great old engine but neglect the last two steps and it can become scrap metal FAST
after that install a new diaphragm kit in the fuel pump and a new impeller in the lower unit.
ALSO replace the fuel hoses on the engine.
|