Since nothing is mentioned if the motors are identical otherwise, then just the gearcase. Assume you're referring to the 250's. Only 2 gearcases were for that model and that's the verado style and the torquemaster. Torquemaster has a lower gear ratio designed for heavier rearend boats 1.75 ratio to help with moving it and preventing blowouts
I just saw a picture of two engines that to me looked identical only one said torquemaster. I don't own one...............yet. oh and they were 225 hp Thanks for the reply.