I ordered these from STM a while back. I figured with how great the headstuds are that these would be great. Finally got to put them in, used nickle anti-seize and had them on for 3000 miles before I had to pull my head for valve seals.
Here is my review:
Please do your research before ordering parts for your car. Don't be like me and wind up with money and time wasted! If you research these you will find out they are very prone to seizing and OEM bolts are recommended.
And note this is for the SS bolts, not the Chrome Moly!