340 engine help

I did pull the valve covers and the rockers look like the day they were installed, they are spotless. All the freeze plugs are still nice and shinny, I don't see any rust on this motor at all. Even looking in the exhaust ports the valves don't look like they have any surface rust on them, but they do have some over spray like I said he did not cover them up too good when he painted this motor.
Bob