Cooling a drag racing engine presents unique challenges. To meet these challenges, AFCO has developed several radiator models dedicated to drag racing applications. Designed to be compact and highly efficient, these radiators provide the needed cooling to keep you cool at the line without sacrificing performance due to excess weight and coolant. AFCOs Double Pass Dragster radiator is specifically designed for roadsters and dragsters. It features a 16 fin per inch, no epoxy core for maximum efficiency, as well as a high CFM / low AMP draw fan & shroud combo. This radiator comes complete with a fan on/off switch, 4 mounting bosses and 3/4? FNPT (Female National Pipe Thread) inlet / outlet.