if you have room you coculd go with a larger capacity rad and by all means keep the eng driven fan with maybe a pusher fan in frt , A LARGER RAD WON,T NESSESARILY MAKE IT RUN COOLER AT NORMAL RUNIING AS LONG AS YOU HAVE A THERMOSTATE , WHERE THE BIG RAD COMES IN TO PLAY IS WHEN YOU REALLY NEED IT ,IT CAN GET RID OF A LOT OF HEAT , THE TURBO MODELS OF THE SAME ENG ALL HAD 3 ROW RAD.. JERRY