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Crank case vent with a 8-71 blower? HELP.

Discussion in 'The Hokey Ass Message Board' started by JTW, Mar 31, 2012.

  1. JTW
    Joined: Sep 4, 2010
    Posts: 277

    JTW
    Member

    I wanted to run the non vented old school high finn-ed SBC valve covers with this BDS blower. But they have no breather provision.... what are my options? Im going to build a small tube/plate that bolts in where the fuel pump hole is to add OIL... But im afraid that withough the proper set up this may become my puke point? Any thought on this?
     
  2. Deuces
    Joined: Nov 3, 2009
    Posts: 26,427

    Deuces

    You need to install an oil fill tube on the blower intake with a vented cap... That'll be .02 cents please...... Thank you!..;)
     
  3. I'm with deuces, the higher up the better


    Do it once, do it right.
    My idea of fun, 6-71, 642hp, 570ft/lb, 11" tyre, 4.56 out back and two gears....
     
  4. There is a reason all of those cool valve cover breathers are out there.
     
  5. JTW
    Joined: Sep 4, 2010
    Posts: 277

    JTW
    Member

    I guess some of you are not familiar with how big an 8-71 is. There is no extra room. Olds 455 run the oil fill exactly where I want to run the adapter on the Chevy? Is there any reason that that fill tube properly outfitted should not work?
     
    Last edited: Apr 1, 2012
  6. el caballo loco
    Joined: Mar 7, 2012
    Posts: 166

    el caballo loco
    Member
    from colorado

    Will the add-on style that fit the side of a valve cover fit on an end of the V/C? I'd be worried about having my fill so low on the block but i worry about alotta stuff that don't mean nothin.
     
  7. JTW
    Joined: Sep 4, 2010
    Posts: 277

    JTW
    Member

    I am not sure? I would of course raise the filler tube to be even with the intake, Im good at hidding stuff. Thought about at the top of the filler tube also adding a crank case evac hidden and ran to the first exhaust tube underneath?
     
  8. Candy-Man
    Joined: Mar 21, 2006
    Posts: 1,715

    Candy-Man
    Member

    I have driven my rod with a 871 blown 409 for 13 years on the street and have a oil filler located where the fuel pump was, just as you enquired above. My filler pipe is 8" long with a breather cap. I have also added two Moon breathers to the valve covers as well.

    In the oil filler tube, I placed a Moroso rubber oil filler gromet to prevent oil from backing up the tube, however; it works perfect.....
     

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