I am getting my 4.6 back up and running after head replacement. Bought this as a non runner and slowly getting things back to where they should be. Can anyone help me figure out what goes into those rusty holes on either side of the fan? Have looked on RealOEM and google image search, but can't find anything. Thoughts? Pics?

Attached Images

 

__________________
Dave S.
Northeast
2003 4.6is
2005 E53 4.4
2003 E39 Msport(a REAL ONE!)
1959 Fiat 600