1962-64 Turbo SPYDER head temperature sensor mini harness, exact reproduction, you don't need to modify anything. At one end, there are 2 connectors: 1 goes to the oil pressure switch and the other to the head temperature switch; and at the other end the double connector goes to the engine harness. Don't hesitate to call us at 918-753-2486 with any questions you might have about this item.