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Now I'm confused, that video clearly shows these studs in an ARP box...Originally Posted by WyomingHunter
I got a chance to speak to ARP about headstuds. The rep I talked to said there's not another headstud coming out. The confusion is actually with the Haisley L19 studs that are "not an ARP product". Though it seems that the may be manufactured by ARP, the rep didn't say so. Anyway, those studs are meant specifically for a race application and are not recommended for a daily driver for the following reasons.
"L19: This is a premium steel that is processed to deliver superior strength and fatigue properties. L19 is a very high strength material compared to 8740 and ARP2000 and is capable of delivering a clamp load at 260,000 psi. It is primarily used in short track and drag racing applications where inertia loads exceed the clamping capability of ARP2000. Like most high strength, quench and temper steels – L19 requires special care during manufacturing to avoid hydrogen embrittlement. This material is easily contaminated and subject to stress corrosion. It must be kept well-oiled and not exposed to moisture."
From ARP website: https://arp-bolts.mobi/p/tech.php?page=5
Additionally, the rep was adamant that there is absolutely no reason that the ARP2000 can't be reused multiple times as long as they are never overtorqued.
So at this point I'm really leaning more towards the 425 or ARP2000. Though the idea of being susceptible to corrosion over time concerns me, I also think that over that kind of time, the head studs wouldn't be the only part showing stress.
Found another article that could help a person on the fence. http://www.dieselarmy.com/engine-tec...e-right-studs/
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