We put a new oil pump on one of my hemi`s once, ( roller cammed super stock motor) , started it w/ no oil pressure, partner was sitting in the drivers seat, I ask him how the pressure was, he sat stunned for a couple of seconds, and said the isn`t any, I told him to kill it.
It had ran for about a minute, we pulled the pan and had no bearing damage . Was running either Valvoline or Quaker State 50 weight at the time ----- put original oil pump back on-----draw ur own conclusion.
