Undersized water pump pulley

Discussion in 'Street/strip 400/430/455' started by 87GN_70GS, Jun 2, 2003.

  1. 87GN_70GS

    87GN_70GS Well-Known Member

    Is there a GM water pump pulley that is smaller than the one that somes on a 455 so that the pump and fan will spin faster? TIA.
     
    87GN_70GS, Jun 2, 2003
    #1
  2. Dan Healey

    Dan Healey Well-Known Member

    Billet Aluminum pulleys are undersized

    March performance makes them for Buick's. They are on the internet, do a search. If you can't find them, let me know and I will.:TU:
     
    Dan Healey, Jun 3, 2003
    #2
  3. 87GN_70GS

    87GN_70GS Well-Known Member

    Thanks Dan. But I am looking for a GM unit that appears stock.
     
    87GN_70GS, Jun 3, 2003
    #3
  4. Dan Healey

    Dan Healey Well-Known Member

    I have heard 350 pulleys are smaller diameter

    Maybe try a set of those. I will be painting my aluminum ones black to appear factory, but don't tell anyone...:laugh:
     
    Dan Healey, Jun 3, 2003
    #4
  5. 70 gsconvt

    70 gsconvt Silver Level contributor

    I got the march pulleys. They were actually cheaper from Poston than from March or Summit.

    I had them powder coated black for $30 for all three and you can't tell they're not factory.

    Oops, I just gave one of my secrets away.

    Phil
     
    70 gsconvt, Jun 3, 2003
    #5

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