those two are the alignment dowel pins.
the roll pins fit into the 6 oil passages.
iirc. there is a size difference for 1300/1600 or 2000/1750 engines (when ordering roll pins)
Yikes!!! None installed on my engine! I guess that would explain the oil leaks all around the head/block joint.
I’ll wait and see what Jim says before I look elsewhere for some.
Thanks for replying!