P38A Cooling system upgrade

Don't know about nissens but the rads made in Scotland with a plain box and a yellow sticker are not oem standard. They are ok but not tip top. Serck Marston are sprayed black fins tanks the lot. This often peels on the plastic.i don't think they are still available( maybe from main stealers?)I'll have a good look at mine. That was nos and came in a serck box and was 2-3 kilos heavier.