Who says no one strengthens the bottom end? A good windage tray provides good support for a normally aspirated 2 liter ... FWIW, the material is 50% thicker than the engine pylons on a DC10. And if the rules allow a dry sump, the pan can double as a girdle.Question 2: Nobody seems to need or want to strengthen the bottom end. Is this because of the long stroke length meaning high rpm is never going to happen?, although I would have thought that Jim's Boneville engine was trying it's hardest to push the crank out through the sump even @ 7000 rpm. These blocks to me don't look that strong, compared to a Subaru, Porsche or Sud, etc.