Hey Guest!
What's the pressure rating for a stock late BJ8 radiator cap?
At some stage in its history my car was fitted with a 4 lb cap that I would like to replace.
I believe the Healey radiator requires a cap that will seal the somewhat taller filler neck (someone please correct if I'm wrong--I know you will. Either measure your existing cap--if it works correctly--or get the correct one from one of the specialists.