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Technical Oversized FLathead valves ??

Discussion in 'Traditional Hot Rods' started by mcbay, Sep 11, 2013.

  1. mcbay
    Joined: Aug 20, 2007
    Posts: 519

    mcbay
    Member

    Does anyone know who makes 1.60" flathead valves in the stock length ?
     
  2. RICK R 44
    Joined: Dec 13, 2009
    Posts: 475

    RICK R 44
    Member

    used stock chev 1.6 inch and had my buddy at the machine shop shorten them. The keeper grooves are at the correct length for a flatty. they just need a bit off the end.
     
  3. alchemy
    Joined: Sep 27, 2002
    Posts: 22,633

    alchemy
    Member

    Isn't it better to have the extra length for use with our reground cams?
     
  4. Putputboom
    Joined: Mar 25, 2012
    Posts: 274

    Putputboom
    Member
    from Fresno

    Ill bump this as I would like to know if there is a down side to using a reground cam as well as if there is any opinion on 1.5 or 1.6 chevy valves or if anyone has an opinion on using pinto valves as I heard they work sweet in flatheads.
     
  5. lowsquire
    Joined: Feb 21, 2002
    Posts: 2,567

    lowsquire
    Member
    from Austin, TX

    The biggest problem with a reground cam, and chev valves.. Is adjusting lifters . The combination of lower cam base circle and 0.100" longer valves means the adjusters are way down in the lifter bore, and unless you have cut reliefs in the bores and drilled them down low to lock the lifters, a valve adjustment can take hours and hours . It's fine if you are doin a complete rebuild, do the work and the chev valves work great.. And are cheap!


    Posted from the TJJ App for iPhone & iPad
     
  6. Mart
    Joined: Mar 3, 2001
    Posts: 5,002

    Mart
    Member

    Can someone give me a clue - if I want 1.600 Chevy valves to use in my flatty (shortened if necessary) Which model, year and engine should i be looking for? Am I looking for exhaust valves? Am I thinking use chev exhausts for flatty inlets?

    (Sorry for the hi-jack)

    Thanks, Mart.
     
  7. HEATHEN
    Joined: Nov 22, 2005
    Posts: 9,024

    HEATHEN
    Member
    from SIDNEY, NY

    Yes, they are exhaust valves. All of the high performance heads from 327s and 350s that used 2.02 intake valves used 1.6 exhaust valves, starting in 1964.
     

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