455 valve adjustments issues

Discussion in 'Street/strip 400/430/455' started by josehf34, Jun 11, 2019.

  1. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Might still be normal for 5600' altitude.
     
  2. Schurkey

    Schurkey Silver Level contributor

    Hot or cold, doesn't make a lot of difference. Hot generally a little more pressure, but not a lot.
    Yeah. But it sure seems weak.

    I guess a person would have to test some "known good" engines to get a feel for how they respond to the altitude in terms of cranking compression. That, or work some mathematics. (sorry, I'm allergic.)
     

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