Bore rust

Wasn't referring to your post at all. But now that I went back and took a closer look, depending on how this engine is being built, I would probably sacrifice the cam bearings that were installed and send it back to the machine shop to finish the job. The decks weren't touched, all the lifter bores also look rusty. There is some serious deburing that needs to be done in the valley area between the lifter bores etc... Might as well have the whole block recleaned and if the bores haven't been honed to the individual pistons yet, (doubt it)have it done then. And oil is a lubricant, grease is a preservative. Mix oil and water and the oil floats above the water, metal side down. Try to mix grease and water. Water just sits on top of the grease. Should also bag it if not going to assemble very soon if for nothing else than to keep out the dirt that you will attract.