Flex-a-lite aluminum radiator and fan kits feature internal fins that perform as heat sinks, absorbing heat more quickly from the engine coolant, and then radiating it through external fins to dissipate the heat more efficiently. These radiators feature all-aluminum construction and Flex-a-lite electric fans to cover 100 percent of the core. By fully shrouding the core, cooling capability can be improved by as much as 40 percent. The fans feature reversible blades, which allow them to be inverted, and the motor wires can be reversed for use as puller or pusher fans. So, if you are looking for a high-quality, properly matched radiator and fan, Flex-a-lite has what you need.