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Technical Will my pcv setup work, for blown sbc?

Discussion in 'The Hokey Ass Message Board' started by rawcjw19, Dec 24, 2014.

  1. rawcjw19
    Joined: Oct 8, 2012
    Posts: 581

    rawcjw19
    Member

    image.jpg image.jpg Do you think my pcv setup will work ok? Ihave the valve cover breather on the opposite side functional and the breather on the pcv side blocked. I wasn,t 100 percent sure I should go above the blower.
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 59,171

    squirrel
    Member

    might work ok, as long as you have very good oil separators both at the breather, and the PCV valve connection on the valve cover. On my blown 427 with stock valve covers, I ended up using a header evac on one side, and PCV on the other side...it would push oil out the breather on hard acceleration. Which is odd, because I used the pcv/breather setup on my blown 454 for a long long time without any problems.
     
  3. NMCarNut
    Joined: Nov 28, 2009
    Posts: 638

    NMCarNut
    ALLIANCE MEMBER

    Assuming you have some sort of baffle or oil separator at the valve cover PCV fitting and there is sufficient vacuum at the carb base port to handle the blow-by the system should work. You definitely want the PCV tube port on the suction side of the blower.
     

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