excuse my rambling . hey guys, im trying to figure out the best way to set up my coolant system, and cant find much info through my own researching, so i thought i would post here.

the radiator i have is a horizontal flow doublepass and has no filler neck on the tanks, however it does have 2 female an bungs welded on (10an i believe?)

now i could use one of thoes in line filler necks but the idea of coolant blowing all over the engine bay in the event of running hot is far from ideal. in my search i ran across a diagram


this diagram makes sense to me as it sits, air escaping to the tank as it flows through the ancillary hoses and lower rad hose etc, tank placed higher than radiator so that it dosent just fill up with coolant, provides secondary fill point, etc.

BUT i am not sure how i can adapt this to my radiator that has no filler neck? im probably just being stupid but i dont see how it would work properly. the only thing i can think of is instead of running the hose that (in the diagram) attaches to the overflow nipple of the radiator, i could run it to one of the AN ports on the end tank and the rad would fill via that line.

the functionality of this would be different from the diagram however, since the overflow nipple is obviously only open when the system is overheating, i am not sure how this change would affect the cooling system.

could somone please shed light on my situation? ive gotten myself all confused, and my fluid dynamics physics is pretty poor so i am not exactly sure how the coolant will flow/fill/etc throughout the system when pressurized as it is in the posted diagram.