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71 valve cover grommets

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  • Michael G.
    Very Frequent User
    • March 1, 2008
    • 485
    #1

    71 valve cover grommets

    My 71 base 350 (stamped steel) valve covers came with the angled top, rounded lower section and flat upper section, grommet as called for on the left for PCV. I have noticed that both C. Central and Paragon prescribe the left PCV as described above, and a full round, flat top grommet for the right breather tube. I have no reason to believe that it didn't originally come with the identical PCV grommets on both sides. Has anyone else had this situation and if so, what is the correct configuration? Baffled as usual, Mike
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    • Dave S.
      Extremely Frequent Poster
      • August 31, 1992
      • 2918
      #2
      Re: 71 valve cover grommets

      Originally posted by Michael Gaither (48683)
      My 71 base 350 (stamped steel) valve covers came with the angled top, rounded lower section and flat upper section, grommet as called for on the left for PCV. I have noticed that both C. Central and Paragon prescribe the left PCV as described above, and a full round, flat top grommet for the right breather tube. I have no reason to believe that it didn't originally come with the identical PCV grommets on both sides. Has anyone else had this situation and if so, what is the correct configuration? Baffled as usual, Mike
      Mike,
      Both sides are the same. I'm a bit confused by your description but I would say they are angled so the PCV and breather are horizontal when installed. The angled grommet somewhat levels the angle of the valve cover if that helps.
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        • Dave S.
          Extremely Frequent Poster
          • August 31, 1992
          • 2918
          #3
          Re: 71 valve cover grommets

          Originally posted by Michael Gaither (48683)
          My 71 base 350 (stamped steel) valve covers came with the angled top, rounded lower section and flat upper section, grommet as called for on the left for PCV. I have noticed that both C. Central and Paragon prescribe the left PCV as described above, and a full round, flat top grommet for the right breather tube. I have no reason to believe that it didn't originally come with the identical PCV grommets on both sides. Has anyone else had this situation and if so, what is the correct configuration? Baffled as usual, Mike
          Mike,
          I meant to say vertical rather than horizontal.
          Sorry...........
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            • Gerard Q.
              Very Frequent User
              • January 31, 2000
              • 284
              #4
              Re: 71 valve cover grommets

              Both are the same on my 71 sb



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                • Joe L.
                  Beyond Control Poster
                  • January 31, 1988
                  • 43193
                  #5
                  Re: 71 valve cover grommets

                  Originally posted by Gerard Quinn (33629)
                  Both are the same on my 71 sb



                  Gerard----


                  Yes, GM #3989350, the grommets you have pictured, were used for both sides. Was every, single 1971 with base 350 done this way? I don't know. There could have been exceptions.

                  By the way, what paint did you use on your engine? Was it the Bill Hirsch-supplied Chevy Orange?
                  In Appreciation of John Hinckley
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                    • Michael G.
                      Very Frequent User
                      • March 1, 2008
                      • 485
                      #6
                      Re: 71 valve cover grommets

                      Thank you Guys,
                      Apparently I will have to verify an application with you folks when the aftermarket catalogs dont smell right. Grateful as always, Mike
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                        • Gerard Q.
                          Very Frequent User
                          • January 31, 2000
                          • 284
                          #7
                          Re: 71 valve cover grommets

                          Originally posted by Joe Lucia (12484)
                          Gerard----


                          Yes, GM #3989350, the grommets you have pictured, were used for both sides. Was every, single 1971 with base 350 done this way? I don't know. There could have been exceptions.

                          By the way, what paint did you use on your engine? Was it the Bill Hirsch-supplied Chevy Orange?
                          No, we used VHT Chevy Orange.
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