23 degree 2.08" valve on a 4.030 sbc?

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  • milkovich
    Superhero BangShifter
    • Nov 2007
    • 1198

    #1

    23 degree 2.08" valve on a 4.030 sbc?

    I've got a line on some cool cylinder heads for the ol' 383 but i'm wondering if I can run a 2.08 valve on it. I'm less worried about shrouding then "interference."
    Cheap, slow, half-assed: Pick three
  • TC
    Banned
    • Nov 2007
    • 11805

    #2
    Re: 23 degree 2.08" valve on a 4.030 sbc?

    You should be able to, I can't remember if my Sportman II's had 2.08's in them when I ran them on the 350, I'm pretty sure they did. But I do know that when I built the 406 and switched to the solid roller cam I replaced them with 2.08's.

    I had Race Flo's on the 350 and switched to Severe Duty's on the 406 with the roller.....

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    • Scott Liggett
      No Life Outside BangShift.com
      • Oct 2007
      • 21561

      #3
      Re: 23 degree 2.08" valve on a 4.030 sbc?

      My 383 sbc has those valves. No problems so far, but my cam is a bit mild for the heads. .540 lift.
      BS'er formally known as Rebeldryver

      Resident Instigator

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      • JeffMcKC
        Legendary BangShifter
        • Oct 2007
        • 7024

        #4
        Re: 23 degree 2.08" valve on a 4.030 sbc?

        You can unshroud a small bore by notching it
        2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
        First to run in the .90s .80s and .70's in SBN/A
        2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
        2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!

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        • miketblsr
          Superhero BangShifter
          • Nov 2007
          • 771

          #5
          Re: 23 degree 2.08" valve on a 4.030 sbc?

          Should fit we run them on the 383 with iron eagle plats. 4.030 bore. Id be more concerned with valve to piston. We have had that issue with those valves alot.

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