I have a set of original stock headers that are sitting in my the trunck of my car. I bought my 85 GN last year with 79,000 miles, original motor, original rubber on engine, no modifications on engine. I have subsequently had the engine remanufactured, larger cam, cold air kit, new poston exhaust headers, hooker exaust, and hot wire kit.
The exhaust headers are in good shape(never been repaired) If you are interested- Please let me know. I can also email detailed pictures if you are interested
Brad