Need a 1971 3991399 water pump - NCRS Discussion Boards

Need a 1971 3991399 water pump

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  • Jack M.
    Infrequent User
    • February 1, 1997
    • 2

    Need a 1971 3991399 water pump

    I am looking for a 3991399 water pump for my 1971 Lt-1. Are these specific to LT-1 or were they used elswhere. ?
  • Jack C.
    Extremely Frequent Poster
    • September 30, 1992
    • 1090

    #2
    Re: Need a 1971 3991399 water pump

    Bill Mock in the Driveline.
    Jack Corso
    1972 Elkhart Green LT-1 Coupe 43,200 miles
    Top Flight 1994, 2018 & 2021

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    • Kenny C.
      Expired
      • March 2, 2009
      • 191

      #3
      Re: Need a 1971 3991399 water pump



      Kind of expensive but how bad do you want it? I purchased one recently for far less but had to look for a while, how patient are you?
      Kenny

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      • Joe L.
        Beyond Control Poster
        • February 1, 1988
        • 43198

        #4
        Re: Need a 1971 3991399 water pump

        Originally posted by Jack Moore (28737)
        I am looking for a 3991399 water pump for my 1971 Lt-1. Are these specific to LT-1 or were they used elswhere. ?

        Jack-----


        The 3991399 casting was used for all 71-E72 CORVETTE small blocks, LT-1 and base engine. It was also used for some MD/HD trucks with small block during this period. It was not used for any other application.
        In Appreciation of John Hinckley

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