The kit comprises an aluminium adaptor which replaces the lower water elbow on the three litre block, the water pump itself, hoses and clips.
The pump fits neatly in place of the lower elbow. When not in service, it does not impede the standard water flow. When switched on, it will overcome the standard mechanical pump whether or not the engine is running, so both pumps operate independently in effect.
Used in conjunction with an electric fan, either on a timer or thermostatic control, it will allow cooling to continue after the engine is switched off, thus making for easier hot starting and reducing fuel vaporisation.