12 October 2025:
Just a small update. Installed upper oil pan, and prepared for exhaust manifold installation. Not a whole lot else to talk about, but here are some pics, and you can see the oil pump drive and the little slots talked about earlier in the thread. These slots are where oil drains out from the main crankcase into the oil pan. This is effectively a windage tray. It is also the main bearing girdle. Those tiny slots is where the pics of the rotating assembly were taken from a few posts back.

A look from above at the main girdle

The slots between the main bolts are where oil drains back.

The slots are pretty small, and the reason the pics of the rods and pistons were difficult to get

Brand new oil pump chain and tensioner

That single pickup for the oil pump is an S/CL-class style pickup for a single front sump oil pan.

A look at the girdle from the other side. Notice the lack of drainage slots on this side.

Upper pan has been sealed. Lower pan is a temporary one, as they tend to get scratched up and dented. This one is already dented.

Lower pan is not actually sealed, just bolted on. There is a brand new one waiting to be installed after the engine is in the car.

View of the right side of the engine.