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PCV valve location

PCV valve location
Y

yellow85cj

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85 CJ7, 258,4.0 head, T177, D300, Dana 30, AMC 20, 3.54
Does it make a difference if the PCV valve is toward the front of the valve cover or the rear of the valve cover? Are the locations interchangeable?
 
Mine is in the front but it should work in either.
 
Some valve covers have a baffle at the PVC to keep oil from being sucked in. Other than that, it makes no difference where the PCV is in the VC.
LG
 
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