I want to install a stainless steel overflow tank on my 1964 GTO and they come in several sizes-- Anyone done this and knows if the 2" or 3" tank is best and what length is best

I want to install a stainless steel overflow tank on my 1964 GTO and they come in several sizes-- Anyone done this and knows if the 2" or 3" tank is best and what length is best

I have seen people package a long 2"
diameter overflow tank next to the radiator
opening. Looked nice in polished metal.

If you check the thing routinely for the
correct fluid volume, you do not need a larger overflow capacity.

Tom V.

Thanks Tom
I am sure you are aware a 1964 dosen't have any factory tank the only expansion is in the radiator however when I run the A/C it wants to run a little warm that is the reason for the burp tank
Doug