I got a Perkins
4-154 62hp thats approximately 30-40 years old and works like a charm. The transmission(gearbox) is 2.91-1 reduction. I have no proof how old the trans is because the plate is no longer on it but figure it might be same has the engine
. I'm thinking of replacing it with a 2.57-1 reduction. I know this will give me more rpms on the prop but wondering if it will cause any issues with the engine
. Any thoughts?