Just because space is limited in your street rod, sport compact, truck, or muscle car doesn't mean you have to sacrifice your engine's cooling abilities. Flex-a-lite's newest line of Low Profile Dual S-Blade fan systems can provide the maximum cooling you need for a limited space. Each model comes in its own shroud and features dual 12-1/8'' diameter fans featuring Flex-a-lite's strong and efficient S-blade design. The systems flow 2500 cfm of air at 14-22 amp draw and are available in push or pull applications. Both #400-410 and #400-430 include an AC relay and adjustable thermostat featuring variable speed control (VSC) that monitors coolant temperature and adjusts the fan speed to match cooling demand.