Supersport
New member
I have a '72 Seabird with electric shift. The block has been replaced twice and the outdrive has been rebuilt several times.
OMC did both 225hp and 245hp in that year. I am pretty sure it was originally a Buick 307.
What are differences that determine horsepower between the two?
Example: Same outdrive, different gearing? Or completely different engines?
Trying to determine what rated horsepower I am running with.
Thanks!
OMC did both 225hp and 245hp in that year. I am pretty sure it was originally a Buick 307.
What are differences that determine horsepower between the two?
Example: Same outdrive, different gearing? Or completely different engines?
Trying to determine what rated horsepower I am running with.
Thanks!