Brand New ARP Head Studs for. Obtaining the optimum cylinder head-to-block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. That’s why ARP head studs are popular among leading Diesel and Sport Compact/Import racers. You should know that ARP uses a premium grade 8740 alloy that is rated far superior to “aircraft” quality. Then, each stud is precisely heat-treated to 200,000 psi. Following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It’s important to note that lesser quality studs are not even centerless ground – the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs. ARP studs are thread rolled after heat-treat, which gives them about 1000% (that’s ten times) better fatigue strength than those studs that are threaded prior to heat-treat. You will also note that ARP offers specially undercut studs for several engines. This procedure (done only to the shorter studs) more equalizes the “stretch” of both studs, which makes for a more consistent clamping force – one that compensates for head gasket compression when the head is installed. This helps prevent blown head gaskets, and assures optimum sealing! Premium parallel ground washers are also included with each kit. ARP Head Studs are used to connect the Cylinder Head to the Engine Block. ARP Main Studs are used to hold the Main Caps in place for the crankshaft. Let IPG Parts be your one stop shop for all your Honda Performance Part Needs! Please ask any questions you may have. We are always here to help and respond to inquiries in a quick, timely manner. IPG has been 3 years in business but offers 8+ years of market experience. We are proud to bring you fair prices on the top parts available for the automotive performance industry. Working closely with many of the top business names in the industry and located in Orlando, FL we are a full product support facility with the ability to obtain any product that you have in mind. Our racing programs offer us the chance to test and use quality products on the market to further develop and ultimately allow us to give real world feedback on the hottest and most useful products. The parts you see offered for sale are the best of the best. We don’t just sell parts to maintain the business, we sell the parts that will help you perform better and WIN!! Some images being used are just for representation purposes and may not reflect the actual product you receive..