360 heads on a small block

No noise from the lower end though??? Only sounds like lifters at top end are starving for oil. No rapping from bottom end at all.When I tore the motor down after the oil pump shaft issue, there were no shavings in the pan or screen. Just a fiber like substance which I was able to clean out. Oil is clean. I tore open the oil filter and checked if there was anything in the filter and there was nothing to indicate that there was a blockage.