Take control over your engine coolant temps by changing to a lower temp thermostat. These thermostats open at a lower temperature than your stock thermostat, getting your hot coolant to the radiator sooner. This is an important modification to make on any engine making more power than stock, from a cam only setup all the way into supercharged build. 

	LS3
Bolt Spacing	3-1/16 in
Water Pump Opening Diameter	1-15/16 in
Depth	1-15/16 in
Housing Opening Diameter	2-3/8 in