Oil Splitter Plug -- 360

lilcuda said
To properly clean the oil galleys during a rebuild, all of the plugs MUST be removed and the oil galleys need to be scrubbed with an oil galley brush. The key is to replace the plugs upon re-assembly.

Lee (former ASE-certified machinist)
1966 Barracuda, 340 4 speed

This plug does not need to be removed to clean the oil galleys. It's only reason for being there is because of machine methods. Every passage can be reached without removing this plug.