318 build problems & new direction

Well done. Thanks for putting that info together for us.
You're very welcome, sir! It's nice to know the general principles of HP savings (or cost savings or whatever), but it is nicer to be able ballpark quantify something like this. The question of "Is it 1 HP or 10 HP?" makes a big difference in how important it is when making decisions.

Of course in this case of lighter rods/pistons, the benefits of less stress in the crank and parts is a separate benefit. NOW someone is going to ask: How much lower IS the stress? The discussion never ends... LOL