Is changing oil lines from Catch Can to Oil Breather Box ok?

The majority of folks on here are not Suby guys. I would contact Greg Leach at VMC, Carey Hines at Beck, or John at Outfront(probably where your engine came from).

https://www.outfrontmotorsports.com/

Any of those guys would be better help than I could be.

When my car was being built, I saw pictures of this breather tube box thing. I do not know anything about that subie/catch can thing though, but I was intrigued by this thing.

My first question is, does it even have enough volume to serve as a breather box?

I don't know if the cross member "strut brace" part of it adds to the structure of the rear suspension, but if it was triangulated down to reinforce the tranny mount, would this be beneficial?

Maybe incorporating the top two bolts at the tranny/engine union and getting rid of that goofy strap????

Hmmmm....

Maybe I can’t see it, but that strut brace doesn’t have a vent.

@LI-Rick posted:

Maybe I can’t see it, but that strut brace doesn’t have a vent.

Its at the top on the middle, where the logo is.

In picture "B", under his shiny air cleaner tube, there is an aluminum plate with the Seduction logo cut out. This has some kind of chore boy filter under it. This aluminum plate covers a small box that connects both of the tubes that makes up this strut thing.

Here is a shot of a mockup of this thing.

So just to confirm, is image A my oil catch can?  

Greg can verify but image A  appears to be a breather can and would catch residual oil from the vent lines.

On the factory original motor the crankcase and valve covers vent back to the stock air box, so with the stock box deleted and the intake modified, I'd assume they needed a place for the vent lines to run, and a catch can makes sense.  You should have one fitting off each valve cover and one central engine case fitting (that normally runs to a PCV valve).  There is also a little "pipe system" that comes off the stock intake manifold and circles back to itself.  We retain all of the stock breather system on our builds, and while I normally try not to make assumptions about others builds, I think my reply is a safe assumption because you wouldn't want to plug those 3 vents.  Now the 2 other vents on the intake itself we capped on some of the Outfront motors we saw here, but that's been 12+ years ago so I'm not sure what they do with them today...

Yes, that does look like a breather can.  Same one Vintage sells.

There are 4 holes, 2 are used for the vent lines and the other 2 are capped on mine.  So, Is there supposed to be a "breather opening" for them?  Should the other 2 holes be capped?