Engine is supposed to be 160 hp. Ought to get it on a dyno when the local tractor dealers have one in the yard. Many of the details on the id plate have worn off.
When we towed the 404 back to where I lived in Malawi, it had water standing in the bores and needed brake fluid and other stuff to soak, then a lump of wood and a large hammer to free off the piston rings. Engine ran fine after that!
Stephen