You need one retainer nut seal for EACH valve cover retainer nut. Count the number of valve cover retaining nuts - that's how many you need. There are 11 that go around the perimeter of the valve cover, and then four more down the center of the head. That adds up to 15 people...
1998 BMW 328is
1966 Pontiac GTO
2007 Subaru Impreza 2.5i 5-door
View my photos: Caught in the Wild
Last edited by ZeGerman; 02-24-2011 at 11:59 AM.