home made valve cover breathers?

[photo phantom]

Well, looks like I'm going to have to put valve cover breathers on my cal customs.
I could dish out the $40 a peice for em, or maybe save a little bread and come up with aset of my own.
Has anyone done this?
What is required internally to accomplish this?
Can a sponge filter work or does it need some sort of teird(spell?) system inside?
Rich

[TP]

Phantom, I don't know what kind you got but I just got a set of like new 289-302 finned covers for my 51. I'm gonna take a set of tin factory covers and remove the baffle at the opening and JB weld them in mine. Did the same on a set years ago and it worked fine. TP

[C9]

I wonder how it would work out to make up a set of steel tubing pieces with a flat washer welded around the bottom edge and bolt/JB Weld em to a hole bored into the aluminum rocker covers.
Then stick on a pair of oil filler caps with the HD steel wool inside.

Sorta like this Rocket 88 - although these tubes are welded on.

[tommy]

http://fototime.com/{13675DEC-2726-4DCB-B7EA-90AC820CD1CA}/picture.JPG
You can still get the angled breathers like these that have the period look and don't mess up the fins. As you can see I incorporated them into my PCV system. This is an early mock up. Sorry if you are tired of seeing this.

PS If you tie the PCV into the front filler tube use a filler cap on the tube. If you use a breather on the tube the PCV system will use the source of least resistance and just pull fresh air from the breather and do nothing for the engine. The corvettes using that system had a twist off cap to seal the tube except when adding oil.