Re: Valve covers - NCRS Discussion Boards

Re: Valve covers

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  • Duke W.
    Beyond Control Poster
    • January 1, 1993
    • 15610

    Re: Valve covers

    Consider drilling a hole in the block as existed on the original '63 block, but there is a liquid vapor separator in the lifter valley and you would also need to install one, if it can be found, or fabricate something that will work, so this might not be an easy thing to do with the engine installed in the car.

    Drilling a hole in the top of the valve cover may not work well unless you incorporate a liquid vapor separator, which was usually included with valve covers that had the PCV outlet. Without this device the engine could ingest oil through the PCV system. There are lots of lousy PCV system designs out there, including Chevrolet systems, because they allow liquid oil pass through. Unfortunately your between the rock and a hard place on this one. I can't think of a relatively easy solution that has a decent chance of performing well.

    Duke
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43193

    #2
    Re: Valve covers

    Duke----

    Just saw your post after I posted mine. I'm glad you agree that the oil seperation problem is the main "culprit" for this conversion. That's the sticking point that I've been mulling over in my mind for months(maybe longer), but I can't come up with a good solution. It's a "tough nut to crack".

    The pre-68 style in block oil breather/seperators are pretty easy to come by in wrecking yards, but, generally, there is no way to adapt these to later style blocks.
    In Appreciation of John Hinckley

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