Radiator Universal Two Row Heat Exchanger Open 30 in x 18-1/2 in 1-3/4 in High Outlet. The C&R Racing Heat Exchange Radiator utilizes the technology developed from the NASCAR® Radiator and incorporates a built-in 10 plate heat exchanger. The radiator contains the same high efficient oil to water heat exchanger and core that is available in the NASCAR radiator. The standard double pass radiator comes with universal inlet and 1-3/4 in outlets, available in open or closed system. The radiator comes with AN fittings for the oil to water heat exchanger and has optional SPAL fan with custom C&R brackets or shroud. Standard and custom radiators are available.