Advantage is a more accurate torque than the OEM TTY bolts to me. Those TTY are pains in the ass, even with a good angle meter. Yes, reuseable since the M103 likes to eat gaskets.
I will try to find the pictures from the install. Still a leak free headgasket!
Damned valve cover is weeping up front some, but has only lost and consumed half a quart in about four months of driving. Not bad for the ol' 325,000 M103 in this car.
...that also included a 120mph run about six weeks back.
Head was off about 70k ago I guess now and car runs well. Catalyst has been gutted which was decently clogged. I think it needs a rebuilt fuel distributor after speaking with CIS Flowtech for a while.