I'm in the process of a 2.5 rebuild for my 2000 Legacy GT. I've read more than enough to be convinced that new headbolts are unnecessary, so I've completely cleaned and brass wire brushed the original bolts and have two questions:
1. Most of the bolts have a slight indent in the center of the head with an "S" stamped in the dip. There are other bolts that have a round circle at the center of the head, but it does not make an indent. Is this a problem? Do the bolts differ in location? I'm guessing it means nothing but I hate making mistakes based on assumptions and guesses.
2. Since I'm reusing the bolts, do I follow the 8 step pattern of torque and degree adjustment? Or do I skip the steps that "stretch" the bolts - which seem like steps 2 to 4.
Any guidance would be greatly appreciated!