Fox body Mustangs, particularly the 5.0-liter equipped ’82 and later models, have emerged as affordable and very popular street and track performers. With great power to weight ratio, and a huge amount of aftermarket support, 500-horsepower street versions are common. Keeping engine temperatures at bay is a critical factor to consider when building a high horsepower combination. Mark 7 Radiators will build you a custom aluminum radiator that will cool up to 700 HP, with the A/C running, in 100-degree temperatures. Now that’s running cool! If you run performance adders, a supercharger or swapped to a larger engine, cooling can sometimes be a problem. Aluminum has a higher heat transfer efficiency over copper/brass radiators, allowing the coolant to discharge heat more rapidly. So, no matter how large your engine, it will run cooler. For this radiator, Mark 7 utilizes dual 1-inch cores, with future upgrades to 1.25-inch dual cores, providing more area for heat transfer during almost any kind of driving conditions. Natural aluminum, polished or black anodized units can be custom manufactured to your specific requirements. These are not “off the shelf” radiators, but created from your specifications for your vehicle only. Fifteen other anodizing colors are also available, and the average retail price for this natural finish radiator is a very affordable $500.