Howdy. Just finishing putting a 3rd hand Vortech on my L98. When I get into boost, I get oil blowing out of my dipstick tube. Doesn't appear that I have the "puff of death" or anything like that.

There is a vent in one of the valve covers that connects to the intake or throttle body, which puts boost into the crank case - I don't have a check valve in the line. Could this be the source? If so, any suggestions on where to acquire a checkvalve for this larger size line?

 

You have one hard line from the right valve cover to the side of the TB.



That one must be replaced with an open filter and a plug at the TPI, or you can route the line to between the filter and blower.



On the driver side you have a hose going from the intake to the PCV-valve in the valve cover. If the PCV valve is good you can keep it. If it is bad you will boost the crankcase during WOT.

 

yes what he said, no more PCV valve and no more vent line. Both must vent to atmosphere.