What size is the opening diameter of the Lower Radiator hose?

[BlackFox5.0]

I need to know, anyone know what size it is?

 

[ALMOST STOCK]

I just measured both the outlet at bottom of the radiator and lowers hose it self. 1-1/2" for a Stock Radiator.

 

[ALMOST STOCK]

Glad I was able to help.