pcv box on back of block on 90-93 ls

obrienintegra18

New Member
does anyone make a plug to delete that thing it just leaks and causes problems ive seen people remove the top hse and put a filter on the valve cover and plug up the vacuum port on the intake manifold is there something for the box
 

mirrorimg

Well-Known Member
Its the PCV breather box, it allows crankcase ventilation and drainback of oil gases.
 


Prozon

Kris
I don't know if there are plugs for it.. does it leak where it seals to the block or where the lines come out?
 
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