prelube . they used to pack oil pumps years ago , not needed in Mopars . Get the tool and a 1/2" drill . spin the tool clockwise for small blocks , counter clockwise for big blocks until you get oil to the rockers . Spin and rotate , done
That still didn`t help a new Chrysler hemi / hi volume pump from picking up !
Priming or not.
ANY coating of thicker lube with a low melting point is good and usually helps.
Vaseline was even suggested by some Chrysler engineers for intake gaskets on the 426 hemi`s ! It is gone at about 100 some degrees and not enough there to hurt or degrade anything----------
