1966 barracuda heater hose diameter

[cudajames]

I plan on redoing my heater hose and some other work. I am in the process of ordering parts to have on hand when I get the time for the project in the next week or so

I can not confirmed size for inlet and outlet heater hoses. My research has 5/8ths for both and 5/8th and 1/2

66 barracuda

thank you for the help

 

[65 Dartman]

My research has 5/8ths for both

66 barracuda

thank you for the help

You are correct - 5/8th for both


EDIT: unless your heater core has been change to a 70-up then it would be 5/8th and 1/2 inch

 

[chryslerfat]

Yup Dartman is correct

 

[cudajames]

thank you gentlemen

It sure would have been nice if the user manual stated the size

 

[krazykuda]

It depends on if the heater core was replaced. Go with what is on the car...