I don't know what your plans are for the engine/generator combo, but, it looks like you have a generator of decent size that could accept the 60hp that this engine could provide.

But, since you are only going to run the engine at 1800 rpm, your available horsepower will be something near 20 hp or so. The engine is nowhere near it's torque peak and miles away from it's horsepower peak.

The effort involved to effect a rather small genset might not be worth it.