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overdrive pulley

  1. Heating & Cooling
    I wanted to over drive my water pump pulley just a bit to get a little extra flow out of the pump. So with a 6 3/4" crank pulley and a matching size water pump pulley (1 to 1), I'm looking for a 5 1/2 to 5 3/4" water pump pulley, single V-groove. For some reason, the over drive water pump...