Agree, if you’re blocking one side the other needs the inside tube to stop all those little leaksOk, that’s what I thought. At this point I don’t have any oil there. It’s blocked by a set screw under the #1 main bearing. I’m considering tubing that gallery too, so that there would be oil there (if I wanted it) and since it’s at the end of the line, I could pick up oil for the rockers right there.
I’ve never looked into tubing that side and don’t know if it would work.
Or, I could suck it up and have all the lifter bores bushed and not tube anything.