What PSI Radiator Cap?

It's a '71 Charger, 9:1 440, factory 22-inch radiator, high flow water pump and 180 degree high flow thermostat. It does have an overflow bottle. It tends to run a little warm in the warmer air temps.

Right now it's got a 14-18 psi pressure release cap. I don't know that there is anything wrong with the cap that's on it now, but I don't know where I got it or how old it is. I would just like get something that I know where I got it and why I got it.

Thanks.

Greg

hi

most use a 16 lb cap !

Thats kind of what my research was a telling me. I am not sure why the cap I have says 14-18 psi.

Probably bought from a store that sells a lot of radiator and heater hose.

Kevin

I always buy a NOS Mopar 16psi if I have to replace one or when I get a new radiator or recore

i agree with a 16lb cap as well. factory mopar four ear [late model] replacement cap available at your local dealer.