Blowing Valve cover gaskets!!! 383

[shawn.s]

I have a 69 charger and im getting real good at pulling valve cover off passenger side!!!
Newer moter with chrome rings maybe 600 miles on moter.
9.2 comp 508 lift hughs cam demon carb
new alluminum mp covers
Pvc on passenger side
Breather on driver side
Never had leak from driver side
Passenger side blows oil at full throtle!!!!
Blows oil at both top and bott of vc.
We did a leak down test to see how well rings were and it turned out real good.
Pvc type matter or not ?
Next time im going to glue them down .or something

[Dr. Righteous]

Double check that your PCV valve isn't bottoming out on the baffle in the valve cover. I had that happen once with a cheap pair of chrome valve covers and it rendered the PCV system usless. Also, you motor is cammed up so engine vacuum is lower and the PCV system is going to be less effective. Check to see HOW MUCH vacuum your engine is pulling. Remember at WOT your vacuum drops very low. You might have to check into a RACE PCV system that uses exhaust gas velocity from your headers to evacuate crankcase blowby.

[Glen440]

My 400 pushes oil out the breather.......it has major blow by. I smoked the rings in the engine though and I know it. You take the breather off at idle and can feel a little air coming out, you bring it just off idle and its lots of air, this is with pcv hooked up and working. I have no choice but to fix it cause its using alot of oil.