{"title":"Head Studs \u0026 Fasteners","description":null,"products":[{"product_id":"arp-93-98-supra-01-05-is300-2jzge-head-stud-kit-203-4205","title":"ARP 93-98 Supra\/01-05 IS300 2JZGE Head Stud Kit - 203-4205","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eARP Pro Series Head Stud Kit — Toyota 2JZ (203-4205)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe head studs virtually every top professional engine builder relies on for all-out competition powerplants. On a boosted 2JZ they're the part that stops the head lifting when cylinder pressure climbs past what factory bolts were designed for.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eThe manufacturing is the reason for the price.\u003c\/strong\u003e ARP uses premium grade 8740 alloy rated far superior to \"aircraft\" quality, with each stud placed vertically in special racks and precisely heat-treated to 200,000 psi — that ensures complete heat penetration rather than dumping pieces in a basket and hoping.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAfter heat treat, each stud is centerless ground through about ten very slight cuts to make it as close to perfectly concentric as possible. The practical result: gaskets and cylinder heads literally glide into position and align perfectly, which doesn't happen with inferior studs.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eThreads are rolled after heat treat\u003c\/strong\u003e, giving roughly 1000% better fatigue strength than studs threaded before heat treat — a very common industry practice elsewhere. It costs more and it's hard on tooling, and it's why these hold.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eStud ends are broached for easy installation, which also lets the cylinder head come off in tight quarters — worth something on a Supra with the engine in the car.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eIncludes heat-treated chrome-moly 12-point nuts and parallel-ground washers for even load distribution and accurate torque readings. Black oxide finish.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 93-98 Toyota Supra, 01-05 Lexus IS300 — 2JZ-GE and 2JZ-GTE.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePair these with an MLS head gasket.\u003c\/strong\u003e MLS needs consistent clamp load to seal, and that's exactly what a properly torqued stud kit delivers where a stretched factory bolt can't.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47280643211437,"sku":null,"price":265.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/ARP203-4205.jpg?v=1787231951"},{"product_id":"arp-subaru-wrx-ej20-ej25-head-stud-kit-260-4701","title":"ARP Subaru WRX EJ20 \u0026 EJ25 Head Stud Kit - 260-4701","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eARP Head Stud Kit — Subaru EJ20 \/ EJ25 DOHC, 11mm (260-4701)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe clamping force required to keep cylinder heads from lifting under higher combustion pressures. On a boosted EJ that's the whole job — head lift is what kills factory gaskets, and no gasket fixes a fastener problem.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eManufactured from ARP2000 alloy, rated far superior to \"aircraft\" quality\u003c\/strong\u003e, with each stud placed vertically in special racks and precisely heat-treated to 220,000 psi. That vertical racking ensures complete heat penetration rather than dumping pieces in a basket and hoping.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eThreads are rolled after heat treat\u003c\/strong\u003e, giving roughly 1000% better fatigue strength than studs threaded before heat treat — a common practice elsewhere. Centerless ground to assure perfect concentricity, so heads and gaskets align properly during assembly.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eIncludes 12-point nuts and hardened parallel-ground washers for even load distribution and accurate torque readings.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e 11mm, ARP2000 material, 220,000 psi tensile strength.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Subaru EJ20 and EJ25 DOHC — 02-14 WRX, 04-21 STI, 04-13 Forester XT, 05-12 Legacy GT, plus EJ25D, EJ251, and EJ253 naturally aspirated applications.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePair with an MLS head gasket.\u003c\/strong\u003e MLS needs consistent, even clamp load to seal properly, and that's exactly what a stud kit delivers where a torque-to-yield factory bolt can't.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWorth doing on any EJ that's open.\u003c\/strong\u003e This platform has a long history of gasket failures, and if the engine is apart, this is the cheapest insurance against doing the job twice.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47280653500589,"sku":null,"price":305.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/ARP203-4205_3d952474-8bda-4954-ac28-9e38decc0b5c.jpg?v=1787232153"},{"product_id":"arp-nissan-sr20det-head-stud-kit","title":"ARP Nissan SR20DET Head Stud Kit","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eARP Pro Series Head Stud Kit — Nissan SR20 (102-4701)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe clamping force that keeps a cylinder head from lifting under boost. On a built SR20 that's the whole job — head lift is what kills gaskets, and no gasket fixes a fastener problem.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eManufactured from premium grade 8740 alloy\u003c\/strong\u003e heat treated to 200,000 psi. Each stud is placed vertically in special racks during treatment, which ensures complete heat penetration rather than dumping pieces in a basket and hoping for the best.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAfter heat treat, each stud is centerless ground through about ten very slight cuts to make it as close to perfectly concentric as possible. The result is an exceptionally straight part — heads and gaskets glide into position instead of fighting you during assembly.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eThreads are rolled after heat treat\u003c\/strong\u003e, giving roughly 1000% better fatigue strength than studs threaded before heat treat, which is common practice elsewhere. Pro Series studs are also cold-forged to preserve molecular integrity.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e M11 x 1.5 thread, 12-point nuts, 8740 chromoly, black oxide, undercut. Hardened parallel-ground washers included for even load distribution and accurate torque readings.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 1989-1999 Nissan SR20DE, SR20DET, SR20VE, SR20VET. S13, S14, S15 240SX and Silvia, plus FWD B13\/B14 applications.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePair with an MLS head gasket.\u003c\/strong\u003e MLS needs consistent, even clamp load to seal properly, and that's exactly what a stud kit delivers where a torque-to-yield factory bolt can't.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWorth doing on any SR20 that's open.\u003c\/strong\u003e If the head is off for cams, valves, or a gasket, this is the cheapest insurance against doing the job twice.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47294515511469,"sku":null,"price":209.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/arp102-4701.jpg?v=1787415839"}],"url":"https:\/\/streetstripsupply.com\/collections\/head-studs-fasteners.oembed","provider":"Street Strip Supply","version":"1.0","type":"link"}