So the journals are narrower, but is the crank pin the same diameter? If that's the case, then that's certainly a viable option. Is that something a body could do at home, or is that something I'd have to go to a machine shop for to make sure it's precision balanced. Glenn Everitt built a wicked slant, but he used Molnar H-Beam rods, which have long been discontinued for cast cranks. But his pistons were all balanced to within 0.03 grams, IIRC. I'd imagine that once you start messing with rods you have to start rechecking precision balances to make sure you don't end up with vibration issues. Definitely something I would strongly consider though. That machine shop bill can't be too high.