An
oil cooler on the steet is usually more of a negative than one would think. You need hot
oil for the bearings to survive in your motor. Especially with heavy weight
oil. For the track is a different story. Spend an hour at speed at a track and you will understand what I mean. As most use -12 lines to look original, I would suggest blocking off the cooler with cardboard and duct tape until the oil gets warm. Also, use a oil pan heater stick on pad made by Moroso. It saves engines. No cold start ups. All the "Cup" guys use them. There is most definately a reason to use one. Cheap Insurance.