THIS IS A PONTIAC GTO ORIGINAL RIGHT HAND OR PASSENGER SIDE EXHAUST MANIFOLD WITH PART NUMBER 9779328. THESE WERE USED IN 1965-1968 ON THE GTO LEMANS.THERE IS NO DATE CODE ON THIS MANIFOLD - SO WOULD BE CORRECT FOR 1965 - 1968 GTO. THE FLAPPER VALVE, THERMOSTATIC SPRING AND COUNTER-WEIGHT HAVE BEEN REMOVED AND REPLACED WITH SMALL NUTS AND BOLTS INSTALLED IN THE HOLES INSTEAD - PICTURE 7. NICE ORIGINAL STUD THREADS IN PICTURE 6 & 7. EMAIL QUESTIONS. $25.00 SHIPPING IN LOWER 48 STATES. THANKS FOR LOOKING.