1970 EXPANSION TANK - NCRS Discussion Boards

1970 EXPANSION TANK

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  • Joel Lehman

    1970 EXPANSION TANK

    How is the expansion tank on a 1970 small block with a/c mounted? I cannot fit it between the inner fender and the a/c lines coming from the firewall which is where I believe it is to be mounted.
  • Zachary K.
    Very Frequent User
    • March 1, 1986
    • 162

    #2
    Re: 1970 EXPANSION TANK

    1970 small blocks. The only 70 small block to use an expansion tank is the base engine with manual transmission with no A/C. All other small blocks for 1970 had no expansion tank. See the 3rd edition of the Judging manual 1970 - 1972 page 92. List's all models with or without expansion tanks and types of tanks either aluminum or brass.
    1967 L79 Sunfire Yellow Black Leather Convertible- Duntov
    1969 L71 LeMans Blue, Bright Blue Convertible
    1970 L46 Monza Red, Light Saddle Convertible - Duntov
    1976 L82 Classic White, Firethorn
    2013 LS7 Black, Ebony, Convertible


    Moved on -
    2006 LS2 Black, Ebony, Convertible

    Comment

    • Dennis D.
      Extremely Frequent Poster
      • March 1, 2000
      • 1071

      #3
      Re: 1970 EXPANSION TANK

      I have a feeling your going to here of other 70's with x-tanks.

      Comment

      • Juliet P.
        Very Frequent User
        • June 30, 1999
        • 349

        #4
        Re: 1970 EXPANSION TANK

        For one data point, my '70 base engine w/ AC #04102 convertible has no expansion tank. ~Juliet


        1970 Corvette Registry
        2019 Sebring Orange 8-Spd Coupe (daily driver & autocross) 6k mi.
        1970 Bridgehampton Blue Convertible - Chapter Top Flight 2005 68k mi.
        1965 Coupe (Greg's project No Flight)
        Gone but not forgotten:
        1987 Yellow Convertible 199k mi.
        2002 Yellow Convertible 100k mi.
        2007 Atomic Orange Coupe 140k mi. RIP flood 2015
        2007 Lemans Blue 6-Spd Coupe 34k mi.

        Comment

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