{"product_id":"arp-cylinder-head-stud-kit-subaru-wrx-va-levorg-forester-brz-toyota-86-fa20","title":"ARP Cylinder Head Stud Kit - Subaru WRX VA \/ Levorg \/ Forester \/ BRZ \/ Toyota 86 (FA20)","description":"\u003ch2\u003eARP Cylinder Head Stud Kit - FA20 | Subaru WRX VA \/ Levorg \/ Forester \/ BRZ \/ Toyota 86\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 260-4301\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003cp\u003eThe choice of virtually every top professional engine builder, ARP Pro Series head studs set the benchmark for head clamping hardware. When you're building an FA20 for serious power, there is no better stud on the market.\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003ch3\u003ePremium 8740 Chrome Moly Steel\u003c\/h3\u003e\n\u003cp\u003eARP uses a premium grade 8740 alloy rated far superior to standard \"aircraft\" quality material. Each stud is vertically rack-mounted and precisely heat-treated to 200,000 psi — ensuring complete, even heat penetration throughout the part. This is in stark contrast to lesser manufacturers who batch-treat parts in baskets with inconsistent results.\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003ch3\u003eCenterless Ground for Perfect Concentricity\u003c\/h3\u003e\n\u003cp\u003eFollowing heat-treat, every stud is centerless ground through approximately ten precision passes, producing an exceptionally straight, concentric part. Many competing studs skip this step entirely — thread rolling bar stock before heat-treat when the material is easier to machine, at the cost of final part quality. The result with ARP is that gaskets and cylinder heads glide into position and align perfectly every time.\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003ch3\u003eThread Rolled After Heat-Treat\u003c\/h3\u003e\n\u003cp\u003eARP studs are thread rolled \u003cem\u003eafter\u003c\/em\u003e heat-treat, delivering approximately 1,000% better fatigue strength compared to studs threaded prior to heat-treat — a shortcut that remains common practice across the industry. It's harder on tooling and costs more to produce, but the fatigue resistance advantage is significant in high-boost applications.\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003ch3\u003eUndercut Design for Consistent Clamping Force\u003c\/h3\u003e\n\u003cp\u003eSelect ARP studs feature a specially undercut shank that equalises the stretch between studs of different lengths. This produces a more consistent clamping force across the head, compensating for head gasket compression during installation — helping prevent blown gaskets and ensuring optimum engine sealing under sustained boost.\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; text-align: left;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; text-align: left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; text-align: left;\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; text-align: left;\"\u003eEngine\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; text-align: left;\"\u003eYears\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; text-align: left;\"\u003eTrans\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eWRX\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eVAG Sedan\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFA20E 2.0L Turbo AWD (197kW)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2015–2021\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e6MT \/ CVT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eBRZ\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eZC6 Coupe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFA20D 2.0L NA RWD (147kW)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2012–2016\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e6MT \/ 6AT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eBRZ\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eZC6 Coupe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFA20C 2.0L NA RWD (152kW)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2016–2021\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e6MT \/ 6AT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eLevorg\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eVMG Wagon\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFA20E 2.0L Turbo AWD (197kW)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2014–2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eCVT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eSubaru\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eForester\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eSJ Wagon\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFA20E 2.0L Turbo AWD (177kW)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2013–2018\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eCVT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eToyota\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e86\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eZN6 Coupe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFA20D 2.0L NA RWD (147kW)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2012–2016\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e6MT \/ 6AT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eToyota\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e86\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eZN6 Coupe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFA20D 2.0L NA RWD (152kW)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2016–2021\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e6MT \/ 6AT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":67554272051504,"sku":"260-4301","price":599.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/3156\/2544\/files\/260-4704-2_1080x_b486a0fe-9863-405d-91f8-54080826025c.webp?v=1787205687","url":"https:\/\/coore.com.au\/products\/arp-cylinder-head-stud-kit-subaru-wrx-va-levorg-forester-brz-toyota-86-fa20","provider":"Coore | Performance \u0026 Aftermarket","version":"1.0","type":"link"}