Dual Core High Efficency Karting RadiatorDual Core High Efficency Karting Radiator Our dual core racing radiators are all aluminum, furnace brazed custom built units which offer signigant reduction in operating temperatures and the ultimate in efficency. The ultra lightweight, high flow cores feature geometrically designed tanks with front and rear radiator surfaces covered by a pre installed protective screen to reduce damage to the fins. The additional mount is constructed from a 6061 T6