Oil Galley plugs at Camshaft

Some engines came from the factory without the plugs. A mistake? Maybe... or laziness.

The small block tends to have some oiling issues at higher rpm but that's not where most guys runs their cars. I guess it's at 6500+ on the tach. If you run those speeds you need to be aware that any "leaks" in the internal oiling system may lead to a spun rod bearing.Too much lifter bore clearance, loose bearing clearances, a loose or missing pipe plug, leaky cover on the oil pump... (there are more!) Any and all can give trouble.

My advice is to eliminate any and all potential leaks even with a daily driver. Doesn't really cost anything and it's peace of mind if nothing else.