Yeah , it was asking Tim , i can't rem\mber what i settled on , In my later whiteblocks i used Penrite but with my first 8roR i tried a few different ones as the motor was rebuilt and i wanted to go with period oil.
The whiteblockis prone to ticking , its nothing that can be adjusted yet the valve gear can be treated to some diesel on it to clean it , soak it iirc , dump it all out the bottom and flush with good oil but i found with certain oil it would be quiet. Certainly Mobil One was noisey , Penrite Ten Tenths is a massive improvement over the Mobil and doesn't cost that much more in bulk.