guver - If using your explaination, I input my same question. I get the answer I came up with. You say all things being equal, the longer the stroke the more torque. You also state that increasing displacement will increase both torque and HP. That being said, one would assume that when increasing displacement, you are only increasing bore and leaving the stroke the same (as in the .26) - then the engine would in essence create the same torque as before, as you technically decreased the stroke of the engine in relation to its size. I'm just guessing here.