Crank
And I have a FINE EAGLE 4340 4.25 that has a Black Rod Journal,same DEAL!
If your WORRIED about Sraying the Motor,DONT do it!Because everytime you acctivate the Hose,that will be in Your Mind.
I have had 3-Motors with SBC Rod Journals,they were all Injected Motors.The Last 1 was almost 950HP,never had a Issue.The Guy I bought it From was a Engine Builder from So.Ind.He ranit in His Top Dragster and said that He would Hit it SOMETIMES with 225Hp of Hose to get the Car in the Field,so maybe this sheads some Light??
If you had the Crank Turned and then Hard/Chromed I would let it HAPPEN!
Later
G 8)