Mine was done on a mill with the head angled to match the tube angle on a tin cover. The hole was cut so that a s@#b chrome filler fit tight in it. Looks good and no leaks (so far). Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

I think the covers Mummert is producing will have provisions for the stock breather. It wouldn't be difficult to drill a cast cover for a breather but space is limited on the valley cover.
You can use a similar process as described here: http://forums.y-blocksforever.com/Topic3719-3-1.aspx?


Lawrenceville, GA

Does anybody make a finned valley pan with the breather?  Would prefer an aluminum one but not required.  Found a posting back from 06 and at the time nobody made one.  Prefer the breather in valley pan vs the valve covers.  Has anybody added a breather to a finned pan before. 

Here is where my interest arised from.

Warsaw, IN