Strip the block down to bare bones, including removing all the oil gallery plugs. Failed bearings put metallic debris all through the engine, and it's essential to get all of it out. I use a set of rifle brushes through all the passages, followed by repeated flushes with a pressure washer. If there's a local engine rebuilder or automotive machine shop handy, get them to power-flush the block after removing all the parts, including the cam bearings.
Jerry
