Then we are in agreement. The crossover has zero to do with bearing life. It is a means to getting oil to the drivers side when you restrict the oil to the lifters.
Which is exactly why I asked the OP why he was doing it. I don’t know if he’s using pushrod oiling or not but if he’s not he is wasting his time with that modification.
Hopefully he’s running a rear sump pan and he spends some time getting the pick up side of the pump in shape.
He will have way more success doing that then the crossover.
