[Walt Fricke]

Before Supertec (and maybe 993 factory) studs, the choices were steel, Dilivar, Raceware, and ARP. The Raceware guy had nasty things to say about ARP, claiming they used the wrong alloy and thus got the wrong expansion rate. But ARP employs engineers, too. Hard for us unwashed to know what to think.

I like the little extra features of the Supertec, like being a bit longer for more case thread engagement, and using finer threads up top. To get that with case through bolts I laid out some bucks to get the later throughbolts. Testimonials like Jim's didn't hurt when I was making up my mind and getting off the pot, so to speak, about head studs. If I recall rightly, Henry had engineering help with his materials selection.