Ehh..don't be a pussy. Those china blocks crack, barely fit a 4-inch stroke... and yield a stomach sickening rod ratio.
I've run a factory bolt on that side before with no issue. Use the 12 point nut, torque it and then grind about half of it off... then clearance the pump body till it fits. the cylinder notching and the rest, as well.. were all laid out in the rags in the early mid 2000's w/mopar muscle ..mopar action..car crap, hotrod..
