ARP is the go-to manufacturer in the automotive industry for engine fasteners. Whether it be OEM replacement parts or custom hardware, their dedication to consistent top notch quality has made them a favorite in the racing world.
These ARP head studs for 058 1.8T engines are made from premium grade 8740 alloy steel which is rated far superior to many "aircraft quality" competitors. The studs are heat treated to 200,000 psi then thread rolled afterward, giving them twenty times better fatigue strength over studs threaded prior to treatment (a common practice with lesser quality studs). These high-quality head studs will ensure your headgasket stays firmly planted under even the most extreme boost conditions. These parts are manufactured in the U.S.A. and are 100% re-usable.
The 058 1.8T engine is a tricky one to make studs for because of the very tight access to the nuts. ARP has finally launched a stud kit in addition to their bolt kit for this engine. The studs offer easier assembly, and are only loaded with minimum torsion when they are tightened. This makes them even better in that they achieve the required clamping force more reliably. The downside is they do cost a bit more then the equivalent ARP bolt kit.
ARP Moly Assembly Lube
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