Valve Cover Breathers with No Welding Required... Hook up a PCV Catch Can with ease! 

I have this set up on my Big Block Chevy that has lots of blow by and it works perfect. However, I have cast aluminum valve covers from Chevy HP and found the o-ring seal didn't work that well so I had to add some silicone to get it perfect. Thanks for solving my leaks MRW.

Love this idea and product. I may have to add a few of these to my RB. They love to breath!! Thanks Doug.

Thanks for the info and that bolt on breather. I will need this for my BBC blower motor.

Man, those would look great on a SBF in a Lincoln.

Currently working on figuring out what all I need to build a hybrid 16v turbo Volkswagen engine and they tend to have high crankcase pressure, the breather on the block isn't enough. Trying to figure out how to vent the valve cover in a way that doesn't look out of place lol, best option right now is to weld an AN fitting on the end of it. If this fits it might be a better solution.

Brilliant!

Nice product but welding is superior because then you don't have to worry about internal fasteners coming loose in your valve train.

I suppose this will work well with a Pan-E-Vac system to the header collectors?

And purchased in anodised black...ticked all the clearance boxes!

Great idea!

Wondering i saw lot vent hole drill to bigger size.. actually what the benefits?

This thing is really expensive dude. I could do 4 bungs for that price, with hoses and fittings.

Badass!

We need these for coyotes!

hey brother im rob from australia, i have an alloy fsbricated valve covers on my small block chrysler. they have a breather hole in each one, about an inch. will you breathers cover that? thanks

can this still work with the stock valve covers with the coils still mounted on top of the valve covers

will these work well if added to the end s or sides of bb chevy alum valve covers

Do you run or have a vacuum pump on your Nova ??

Take my money!

Awesome this is perfect

Will this work with a vacuum pump?

Sweet

Was hoping you might briefly explain the concept, but you basically just said "do your own research on why you need to buy my expensive part"

Just ordered a set for my supercharged fox, my trickflow valve covers arent baffled and the catch can was filling up way too fast. Hope this takes care of the problem.

Weldable bungs $10/pair, pair of these is $380, let me get some after I win a few rounds of wheel of fortune.

Should do videos in empty rooms it echoing like crazy and takes away from the great info you provide

Dude rambles way too much.