We drag racers can be pretty particular about the products we use on our racecars.  We want performance, quality and good looks.  These are reasons why aluminum radiators are used in competitive racecars.  Traditionally, radiators have been constructed of copper and brass, which are very efficient for cooling and dissipating heat quickly.  However, aluminum is very lightweight, so a radiator can be built to weigh less than a copper/brass one; and you know how important it is to have lightweight components in a racecar.  Aluminum is also stronger than brass so the added strength of using aluminum allows the cooling tubes to be built slightly wider, which adds more cooling surface thus adding cooling efficiency.  Of course a final benefit drag racers like is the good looks of an aluminum radiator. Most custom made units will fit in any application and are usually fairly easy to mount.  Where you mount your radiator on your racecar is important but not necessarily critical.   In most stock bodied cars the radiator is mounted up front, behind the grill.  This location allows for good airflow when the car is going down the track.  But, since most drag cars are only on the track at speed for a very short period of time, extra airflow is needed to help keep those high-horsepower engines cool.  High-flow cooling fans are used in most cases.  These high-flow fans draw air through the radiator even when the car isn't moving.  These fans are especially important on those race cars that have the radiator mounted in a low airflow position, such as under the body of a dragster. Many custom radiators will come with a fan and sometimes a shroud too.  Aftermarket companies make numerous types and sizes of fans for practically any application.

Several of the top manufacturers of racing radiators include AFCO, Ron Davis Racing Products, and C&R Racing Performance.