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BRAND NEW IN BOX ARP 12-point Head Stud Kit Fits 2007-2013 Mazdaspeed3 Hatchback with 2.3L Turbo Engine Fits 2006-2007 Mazdaspeed6 Sedan with 2.3L Turbo Engine
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 heattreat, 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. Prevent blown head gaskets and ensure optimum sealing! ARP Studs, Washers, Nuts and Assembly Lube are included with each kit. Images are for display purposes only and may not be application specific. Check out our store for more Mazda / Ford performance parts! |