We are running a TF 4.25 stroke w mopar journals with a 3/8 pickup in a engine yet. Ground off the boss and bent the pickup to clear. That engine has both mopar 2.375 journals and bulky Ly rods, neither helped clearancing. Back at that time in the early 90s we didn't really have any option we could afford so we made it work. Our latest go around we are using a TF 4.5 bryant crank for a 540 but in a b. We turned the rods down to 2.2 and are using scat h beams. I think we have a shot at making the pickup clear with the bbc rods even w the 4.5 throw. But it takes a bunch of time to make that fit. External pickup is likely the way to go.. The big journals and oem style rod bolts worked w the 4.25 but barely. It is a pain to modify the pickup and I don't see the bigger pickup 1/2" tube fitting in there. We run oil restrictors in both our strokers because our crank is cross drilled and the 3/8 pickup couldn't supply enough idle oil pressure.