Now then folks!

Finally got my block black from the engineer. Now the plan is to paint it this weekend although i was wondering how people clean the block inside?

I've doused the block in Carb cleaner and cleaned as much as i could and blew out with a compressor but there's still bits of swarf and dried oil inside the oil ways etc.

How do people clean / wash their block? Really don't want to put it back together while there's contamination floating around in the oil.

Any advice would be great!