It is for good reason that virtually every top professional engine builder relies on ARP. Pro Series head studs for their all-out competition powerplants. Simply stated, theres not a better stud setup on the market today.

For openers, ARP. uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 190,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.

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. Its important to note that lesser quality studs are not even centerless groundthe 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 alignedsomething that wont happen with inferior quality head studs.

ARP. studs are thread rolled after heat-treat, which gives them about 1000% (thats 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 its 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 forceand 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 application. You wont find a better quality stud on the market from any other source. Look for ARP. stamped on each stud as your assurance of quality.

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Whenever possible Club RSX will price match the advertised total price (price including all shipping and handling charges) from any legitimate retailer. The price must be listed in a magazine, newspaper, or listed on an open to the public website. Club RSX will not price match items listed on any auction based website; as they are often not legitimate retailers. We will also not price match special group discounts or sale prices. We will verify all of the information before matching the price. Most of the time, if the price is legitimate, Club RSX will adjust our pricing so that every one of our customers can benefit!

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Do you have a question about ARP K-Series Head Stud Kit? We have two different ways for you to contact us so that we can answer your questions.

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