Talk Morgan Forums Morgan Sports Cars Morgan Plus Four, Supersport & Plus Six (CX & CXV Generation Vehicles) Plus Four coolant leak

When a failed radiator is replaced on a Plus Four/Six, is it a plastic rad or an aluminium one that is used? I ask because on my Plus 4 (Duratec) I had fitted an aluminium rad to replace the original plastic item as preventive maintenance. The plastic rad was reportedly not, in many cases, reliable and leaked.
Bob.