Some Thoughts On Slant Geometry

OK, then just grind the crank pins differently. But your 198 crank would certainly be more square. Why is this important? Just curious....

And BTW, the KB268 and 259 2.2L pistons work out pretty close to zero deck the pistons top with the L6 rod and the 170 block. They would stick out by around .023" with no mods. The pins are off by about 0.026" so the pistons pin bore needs enlarging or the rods rebushed. This is all off-the shelf parts.....And no, I don't have these in hand to check further. Just throwing out thoughts on the theme of lower rod/stroke ratio, which seemed to be desired to get fill velocity up at the lower RPM's.