I've got the radiator out of the XJS and thinking about a swap since originals go for $600-700 dollars and aluminums are supposed to cool better. Didn't see any threads where its been done but doesn't look to awful hard if measurements match. So far it sounds like aluminum dual core is good cooling design. So far i've found three that sort of match up:
1971 Mustang
1990 Camaro
1963 Skylark (except output hose on opposite side)

Any thoughts/concerns/warnings???

Thanks

D A
1994 XJS 6.0L V12 Coupe