1966-73 289,302,351W - Concours Fastener Kit - Exhaust Manifold To Header Pipe Studs/Nuts1966-1973 289,302,351W - Concours Fastener Kit - Exhaust Manifold To Header Pipe Studs/Nuts. Replace old rusted hardware and get that great show quality look with these top quality reproductions! Includes 2 studs and nuts for 6 cyl. applications; or 4 studs and nuts for 8 cylinder engines. |