604 Valve Lash

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  • mjs48
    Senior Member
    • Jan 2009
    • 153

    #1

    604 Valve Lash

    Can anyone tell me the valve lash for the intake and exhaust valves on a GM 604 crate?

    Thank You
  • Matt49
    Senior Member
    • Jun 2007
    • 3123

    #2
    Zero
    Hydraulic lifter motors do not require any valve lash

    Comment

    • BTDT
      Senior Member
      • Feb 2010
      • 122

      #3
      I am told plus 1/2 turn by someone who knows!

      Comment

      • Matt49
        Senior Member
        • Jun 2007
        • 3123

        #4
        Brad Hibbard has some good instructions on his site.
        Scroll down to the section on valve lash but this page is full of good information for crate motors.

        Comment

        • Egoracing
          Senior Member
          • May 2007
          • 4852

          #5
          Originally posted by Matt49 View Post
          Brad Hibbard has some good instructions on his site.
          Scroll down to the section on valve lash but this page is full of good information for crate motors.
          http://race-1.com/faq-2/crate-engine-faq/
          Really good info!

          Comment

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