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Thread: Positive Crankcase ventilation yes or no?

  1. #1
    Mighty Thor
    I have a marine Edelbrock Performer 750 carb on my 460 ford and it does not have any provisions for vacume advance or for a PVC valve. For what ever reason the engine has enough blowby that it puts oil out of the dipstick tube and out of the breathers. Not a whole lot, but enough to make stuff messy in the bilge and under the hood. I could plumb the carb for the pvc or do something else (I remember something about capture tanks for oil overflow) Is there any reason why I shouldn't run a pvc valve. This is a family boat and I will rarely see 4000 rpm. Suggestions please.

  2. #2
    Wicked Performance Boats
    No reason, put it on. but sooner or later you'll need to rebuild the engine. Budlight

  3. #3
    steelcomp
    Find an early Ford carb spacer with the vac. port. They came on late 60's four barrel motors, and fit standard flange Holleys. Also works as a 1" carb spacer. It was made for a PCV valve. BL's right...you'll have to solve the problem sooner or later. PVC is a bandaid.

  4. #4
    sanger rat
    Like Steepcomp said. A 1 inch carb spacer, drill and tap it for a barb fitting.

  5. #5
    Mighty Thor
    I probably have a half dozen of them laying around already and It never occured to me to drill one. Thats why this group is the greatest, cause you is all so smart!

  6. #6
    EXTREMEBOATS
    If your running a after market intake you may have a port there. If not go with the spacer.Mike :hammerhea

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