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Oil Retriction in 390 Heads

Discussion in 'The Hokey Ass Message Board' started by tripowerbird, Jun 29, 2012.

  1. tripowerbird
    Joined: Jul 9, 2011
    Posts: 5

    tripowerbird
    Member

    Should I restrict oil flow to the heads on my 390 if I am installing a hyd. cam? If so, how?
    Thanks
     
  2. what year 390?
     
  3. :DI ran a 1965 390FE for about twenty years in my 52 Ford F1....Had a GT style performance cam and hydraulics, 11:0 compression, headers, close ratio four speed and 3:92 rear...My oiling systen was modified by using a police interceptor grooved main journal crankshaft, all bearing shells in the block had the oil holes smoothed and blended to reduce "drag" in the oil flow....the oil pump area was blended and smoothed too...the lifter valley was painted with Glyptol paint to assist drainback to the oilpan...the oil pump was a high volume/standard pressure Mellings unit....It ran 50 to 60 psi on 10W-30 motor oil....I made restrictors for the rocker arms so the high volume pump wouldn't fill the valve covers when I wound 'er up high....each rocker shaft has one oil feed hole per side under one of the rocker stands...my holes were 1/4" dia.....I took a 1/8" dia welding rod and removed the flux from two pieces about an inch and a half long and just dropped them in the oil feed holes in each cylinder head....worked like a charm...no more filling up the valve covers with oil every time I buzzed it up through the gears....this particular 390FE was built in 1977 and it is still running today in a 1963 Galaxy unchanged.:D
     
  4. barstowpo
    Joined: Jun 27, 2012
    Posts: 232

    barstowpo
    Member

    I always just stuck a Holley 80 jet down in the oil hole. Never ran the valve train dry and revved it to 7500. Well only once to 7500.
     
  5. George
    Joined: Jan 1, 2005
    Posts: 7,823

    George
    Member

    Do an intro! 390 Ford or Caddy?
     
  6. railroad
    Joined: Feb 3, 2010
    Posts: 242

    railroad
    Member

    Columbo said the tripowerbird indicates Ford.
     
  7. drill and tap the oil passage in the cyl head. screw in oil restrictor with 0.100 hole >>>>.
     
  8. George
    Joined: Jan 1, 2005
    Posts: 7,823

    George
    Member

    One guy I was talking with was saying he liked early "Birds" eventually figured out he meant Firebirds...:(
     
  9. slickhale
    Joined: Dec 19, 2010
    Posts: 772

    slickhale
    Member
    from Phoenix

    Go get some single oil hole rocker shafts for a solid lifter 427, they're still avail new from your local parts store. They will restrict it just fine, honestly i usually skip oil restrictions on fe's.
     
  10. krooser
    Joined: Jul 25, 2004
    Posts: 4,584

    krooser
    Member

    I thought he meant Rambler...
     
  11. CDXXVII
    Joined: Nov 5, 2010
    Posts: 144

    CDXXVII
    Member
    from Vermont

    I took a steel pin of the same diameter as the angled hole under the rocker stand. I drilled an axial .090" hole through and dropped it in the hole. It just sits in there so I can pull it out with a magnet.
     

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