I pulled the lower sump off the motor and found a fair bit of sludge and crude on the pan walls, some on the pickup and a bunch on the upper sump

This was what the pan looks like after a quick rinse of degreaser.

Heaps of crude in the upper sump. My engine build has recommended removing as much by hand and then running some diesel oil for a bit to break it down and remove it.

Pickup had a little bot cleaned up relatively quick.

More sludge hiding in a corner

One messy motor, a few more hours of elbow grease and I can start reassembling