1986 is this a good or bad option?
It would be an excellent option! The Volvo Penta OHC 4 is a great engine, and you can't beat the AQ series Volvo Penta drives!
However, note that the stringer drive transom cut-out is much larger than what the Volvo Penta will require.
The transom may also be non-structural, meaning that it may be fiberglass hull thickness only!
(this is actually a plus!)
In either event, a structural transom infill would become necessary.
If you love the boat, and if you are up for some mechanical and carpentry work, it would be very doable.
The transom core work itself is essentially nothing more than carpentry work with plywood, glass matting and resin, finished with roving.
It will involve some glass build-up and closure at the exterior.
The engine and drive are a piece of cake to install.
It will depend on how much of a project you are willing to take on.
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