Fits all Chev, Pontiac Olds V8 motor.. these will open earlier or later depending on the "Opening Temperature"
ie: 160 opens the systems water rotation earlier. . there by reducing the heat in the engine early.. good for hotter climates or higher performance engines... at the same time the higher the opening.. the hotter the Engine will be before the water is allowed to circulate...
Choose from the selection panel above to the right.
Temperature Setting::160 Degree180 Degree195 Degree