I am looking at a set of the GM Performance cast aluminum "Oldsmobile" block letter valve covers. They don't have any holes on them for a breather or PCV valve. There are two Olds rocket emblems on either side of the Oldsmobile lettering that are located in a circle shaped area, does anyone know if there is a "knock-out" in that spot?

What have my fellow Olds fans done when using these valve covers? Any pictures would be appreciated.

 

I have those valve covers.There is NO knock-out spot,or thinner area to make a hole.I just drilled through one of the rockets.If you can cut a circle around the hole,to remove the higher spots from the rocket,your breather gromet will fit better.

 

This is something that has always bugged me, I don't own these valve covers as I think they are a tad overpriced, but WHY WOULD THEY NOT PUT A BREATHER HOLE?

 

Each person wants to put the breather in a different location,or they might also weld evac fittings on the ends,for a vacuum pump,or whatever.
that's the same reason I never end up buying a used set.I never like where they put the hole,or what they did to them.

 

True, but I would hate to cut into those, there soooo pretty