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* Threaded * PCV Valve list ?

Discussion in 'The Hokey Ass Message Board' started by awsomeears, Apr 5, 2013.

  1. awsomeears
    Joined: Feb 5, 2011
    Posts: 159

    awsomeears
    Member

    We all know this topic is beaten to death but what I'm trying to find is a list of Threaded PCV that are Available over the counter...

    Many topics I have read never list threaded style, I will be tapping my own threads in my Cal Custom Side Breathers to try and make it look legit :D

    The hard part will be to see what the Thread pitch is, I will assume many will be Metric and not the very useful 3/8NPT

    So far I have found

    2002 Lancers
    2002 Lexus
     
  2. scrap metal 48
    Joined: Sep 6, 2009
    Posts: 6,075

    scrap metal 48
    Member

    Check 1966-67 Camaro, Chevelle and Corvette.. All had threaded valve...
     
  3. CanUFelix
    Joined: Jan 29, 2009
    Posts: 497

    CanUFelix
    Member
    from venice CA

    My local O'reilly let me sort through their stock till I found one with the right thread and orientation to fit my manifold.......took me ten minutes an. Ad. Good looking metal one that I the drilled and tapped into the intake manifold.....probably easier than waiting for a complete list of oem fitments......
     
  4. 32-3 WINDOW
    Joined: Nov 23, 2005
    Posts: 1,696

    32-3 WINDOW
    Member
    from utah

    like scrap metal says g.m models 66 thru about 69 had threads and they will do it for you
     

  5. TagMan
    Joined: Dec 12, 2002
    Posts: 6,181

    TagMan
    ALLIANCE MEMBER

    I don't recall the number of the male-threaded valve I used, but I do know it was 3/8 NPT
     
  6. awsomeears
    Joined: Feb 5, 2011
    Posts: 159

    awsomeears
    Member

    Remember what car it came from :D

    I did not know the camaro's were threaded, I will check that out thank you !
     
  7. y-oh-y
    Joined: Feb 14, 2012
    Posts: 116

    y-oh-y
    Member

    early 60's ford truck 292 is also 3/8 threaded
     
  8. awsomeears
    Joined: Feb 5, 2011
    Posts: 159

    awsomeears
    Member

    You sir are correct, looks like Fram FV100 and Borg Warner PCV255

    They look the same but I will look tomorrow for the Borg Warner, I think Fram anything is Cheap Shit !
     
  9. supervert
    Joined: Mar 8, 2009
    Posts: 433

    supervert
    Member

    the one on my 63 galaxie 352 has a threaded one
     
  10. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    Be sure to blow through it to make sure you have the correct air flow direction. GM made at least 2 different threaded PCV valves.
    [​IMG]
    [​IMG]
    [​IMG]

    This one has the threads on the suction side.

    [​IMG]
    ]

    The type that screws into the oil fill tube has opposite air flow direction. Having threads is no indication of the air flow direction.

    You need to determine which way you want the air to flow and where you want the valve to screw in before you select the valve.
     
    Last edited: Apr 6, 2013
  11. Hyundai has a nice small one, 1/8 pipe thread. P/N 26740-32804. Equivalent Fram P/N FV 266. Hyundai list price USD$14.06

    Cosmo
     
    Last edited: Apr 6, 2013
  12. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    I like to use one from a similarly sized engine. even the factory ones are sized for normal use and back up under a big load. Provisions are made for this. The engineers know that and size accordingly. If it is undersized there won't be enough air flow to remove the moisture causing sludge.
     
  13. Cosmo49
    Joined: Jan 15, 2007
    Posts: 1,301

    Cosmo49
    Member

    ^^^Yes, sizing I have heard over the years is important, would appreciate a link to a chart with listings for dual-threaded in and out for a 235-261 Chevy. Thanks,

    Cosmo49
     

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