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 (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort. 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 and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing! Premium quality heat-treated 8740 chrome moly steel head stud kits are available for most every domestic and import applications.
You won't find a better quality stud on the market from any other source. Look for ARP stamped on each stud as your assurance of quality.Clearly, they are the best on the market today, and the favorite of leading professional engine builders in all forms of racing. 10 Cylinder Head Studs (11mm). 1 ARP Ultra-Torque Fastener Assembly Lubricant packet. We are NOT responsible for carrier transit time. All product specifications, terms and prices are subject to change without prior notice. We are committed to protect your privacy; we will not sell, share, or rent your personal and financial information to others. We have more than twenty years experiences in automotive industry. All of our products are designed and manufactured to meet or exceed OEM specifications and quality standards, so you can use these direct fit OE replacements with confidence.
With the experiences we have and various professional certificates we hold, we are proud to offer our customers quality products at significant savings. Our products are from factories operate a Quality Management System which complies with the requirements of ISO 9001 and ISO/TS 16949 certificates; they have also been accessed by AFAQ-EAQA and complies with the Environment Management System requirements of ISO 14001 certificate. Please let us know any question you might have BEFORE placing your order. You can order from us with complete confidence! If any of our product is defective, buyers exclusive remedy is reimbursement of the sales price of the good.In no event shall we be liable for incidental or consequential damages. The item "ARP 208-4701 Cylinder Head Stud Kit K20A K20Z K23A1 K24A K24Z engine motor K20Z3" is in sale since Sunday, September 1, 2013. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts".
The seller is "sealingtek" and is located in Walnut, California. This item can be shipped worldwide.