My 1982 7.60 came with a 7.5 hp Honda 4-stroke.
I recently replaced mine with a similar vintage 10hp Honda 4 stroke. Both had about the same size engine cowling, which fit perfectly in the well, and are long-shaft motors.
Did a quick look online- this link will show pictures of the motor like I have.
http://www.smalloutboards.com/h10.htmI don't know whether the newer motors will fit or not; measure carefully the distance from transom to the rear of the well, and from transom to underside of the lid, and take those measurements to the motor before you buy it.
Good luck,
Ben