Aluminum intake manifold restoration/reconditioning

[CamarosRus]

Other than post #24, NOBODY gives McCune props for his EXCELLENT Restoration of his Manifold. Mr McCune ownes a company that does professional/commercial restoration of Alumnum Auto Parts (as does Mr Jackson) ..........Correct me Im wront but the sand casted manifold in post #9 was restored by a shot blasting machine using clean metal shot that has not been contamintaed doing cast iron/steel parts.......
From what little knowledge I have, I believe aluminum sand castings were metal shot blasted by the OEM to remove excess sand and slag.........

Here are a few pics of my Muncie Case (Sand Cast) and Tailhousing/Side Cover (Die Cast)...........

I'm currently concerned with what/how best to "coat" these parts to prevent any corrosion forming........There are a variety of sprays, or thin film coating from Everbrite or CERAKOTE