Q: Radiator busted, car overheated, shut off, did I blow the motor ?

Hi There, Unfortunately, it sounds like your motor may have gotten hot and resulted in some kind of damage that caused it to lose oil pressure, which may have made the problem worse. As you know, there are generally two sources of cooling for the engine. One of these is the cooling system which includes your radiator and the other is the oiling or lubrication system. When the oil pressure drops and the oil light comes on, this means that the oiling system is not properly lubricating various internal components, which can cause the engine to heat up beyond the normal operating temperature causing damage. The rattling sound could have been any number of damaged internal parts that could have resulted from the overheating or lack of oil pressure. I would suggest having a professional from YourMechanic come to your location to take a look at your vehicle to properly diagnose any damage.