Transmission yes, especially if there is no aftermarket gear set available for the application. A good shot peen, cryotreatment and, and nitride job on a tranny. But you'd really need to be pushing big power to make it worth while.

With my motor the long stroke, short rod, high piston speeds, creates torsional vibrations that act like an impact hammer on the trans gears once the revs go high enough.


As far as the motor is concerned, good parts and good machine work will go a long way.