Description

THIS SPOOL ELIMINATES THE THERMOSTAT IN LS ENGINES, GIVING YOU FULL FLOW TO THE RADIATOR THE MOMENT THE ENGINE IS FIRED. THIS ENSURES ADEQUATE COOLING WHILE RACING.

  •  FITS LS3 WATER PUMPS 2009-2015
  • INCLUDES NEW OEM GM GASKET
  • FOR OFFROAD USE ONLY
  • THE 4 HOLES IN THE SPOOL EQUAL THE SAME AMOUNT OF AREA AS THE COOLANT HOUSING INLET TO ENSURE THERE IS NO LOSS IN COOLANT FLOW OR PRESSURE.