yes, for the trucks anyway, the original was a 7# cap, the era cars should be the same, a higher pressure will just stress the rad for no gain, they weren't designed for it
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
