These came off my '85 vette. I have fastburn heads, and decided to switch to center bolt. Nothing wrong with these, just couldn't get the driver's side to seal anymore because of a stripped thread in the bolt hole. I'd say they're an 8.5 of 10, could be made perfect with a little cleaning, 2 1/2 years old.

http://i273.photobucket.com/albums/j...4/100_0755.jpg
http://i273.photobucket.com/albums/j...4/100_0756.jpg

They aren't aluminum (magnet sticks to 'em). They are probably steel. I'll ask for $50+shipping OBO for starters.