1957 Radiator Core Support - NCRS Discussion Boards

1957 Radiator Core Support

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  • Joseph L.
    Very Frequent User
    • July 26, 2012
    • 160
    #1

    1957 Radiator Core Support

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    • Rod K.
      Very Frequent User
      • March 31, 1990
      • 441
      #2
      Re: 1957 Radiator Core Support

      The core support extension is, I believe, attached with 3/16" X ?? aluminum round head rivets and bonding adhesive. Can't confirm that since my car is at the spa right now.

      JG shows 121887 as 1/4" X 1 in one entry and X .6 for another, WB1C or L. Doesn't show the radiator application specifically.

      JG also shows 120229 as 5/16" X .625 WB1C, L, UR or plain. Again, it doesn't specifically list the horn/radiator mtg app. AIM Sect 11, sheet 2 shows remainder of core support mtg bolts as 120229.

      Hope this helps.
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        • David B.
          Very Frequent User
          • February 29, 1980
          • 687
          #3
          Re: 1957 Radiator Core Support

          #121887 1/4 -20 x 3/4 hex zinc also used on cowl vent bracket. Look there to verify, providing yours are original.
          #120229 5/16 - 18 x 7/8 hex zinc also used on seat belt anchor outer. Look there also to verify
          WB1C = course or NC
          WB2C = fine thread SAE
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