C3 Exhaust Manifold bolt torque 350 L46 - NCRS Discussion Boards

C3 Exhaust Manifold bolt torque 350 L46

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  • Jimmy B.
    Expired
    • July 31, 1980
    • 584

    C3 Exhaust Manifold bolt torque 350 L46

    On my 69 350 L46 does anyone know what torque the mounting bolts for the exhaust manifolds should be set to? My engine is almost completely assembled for installation hopefully this week.

    Thanks in advance.
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43221

    #2
    Re: C3 Exhaust Manifold bolt torque 350 L46

    Originally posted by Jimmy Blakely (3742)
    On my 69 350 L46 does anyone know what torque the mounting bolts for the exhaust manifolds should be set to? My engine is almost completely assembled for installation hopefully this week.

    Thanks in advance.
    Jimmy----


    The 4 end bolts on each side (i.e. the 2 on the front and rear runners and secured by french locks) are torqued to 20 lb/ft. The 2 center bolts on each side are torqued to 30 lb/ft.
    In Appreciation of John Hinckley

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    • Jimmy B.
      Expired
      • July 31, 1980
      • 584

      #3
      Re: C3 Exhaust Manifold bolt torque 350 L46

      Joe,

      Thanks again, you're a godsend!

      for the record I just copied your post dated April 1st, 2006 and am using those instructions for installing my distributor and orienting the dimple, etc. Again thanks for all your help this is making it a lot easier for me to get my 69 back on the road!

      Regards,

      Jim Blakely

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