{"title":"Engine Internals","description":"","products":[{"product_id":"arp-2000-headstud-kit-subaru-sti-wrx-lgt-foz","title":"ARP 2000 Headstud Kit: Subaru EJ20\/25 STI\/WRX\/LGT\/FOZ","description":"\u003cp\u003eThe ARP 2000 Headstud Kit for Subaru EJ 20 and 25 turbo engines offers stronger clamping than stock bolts. This ensures a tight seal between the cylinder head and block, reducing head gasket failures under high boost. Ideal for turbocharged engines, these studs improve reliability and durability during performance driving and tuning.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCylinder head studs manufactured using Aircraft Grade Steel.\u003cbr\u003e• Cylinder head stud thread pitch (Block): M11X1.25.\u003cbr\u003e• Cylinder head stud thread pitch (Cylinder Head): M11X1.25.\u003cbr\u003e• Cylinder head stud length: 197mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e• Kits comprises of:\u003c\/p\u003e\n\u003cp\u003eX12 Performance studs.\u003cbr\u003eX12 Heat treated nuts.\u003cbr\u003eX12 Heat treated washers.\u003cbr\u003eX1 Sachet of Moly Grease.\u003cbr\u003eX1 Fitting Instruction Guide.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":50190311555376,"sku":"260-4701","price":549.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/3156\/2544\/files\/SPE1051-2_800x_1a1ccc86-6c98-4cff-b150-208a5286f1be.webp?v=1759448361"},{"product_id":"arp-2000-headstud-kit-subaru-ej20-25-sti-wrx-lgt-foz-copy","title":"ARP 625+ Headstud Kit","description":"\u003cp\u003eThe ARP 625+ Headstud Kit for Subaru EJ 20 and 25 turbo engines delivers superior clamping force compared to stock bolts, ensuring a secure seal between the cylinder head and block. Designed to withstand high boost pressures, these studs significantly reduce the risk of head gasket failures, enhancing engine reliability and durability. Perfect for performance tuning and demanding turbocharged setups, this kit gives your engine the strength and confidence it needs under extreme conditions.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCylinder head studs manufactured using Aircraft Grade Steel.\u003cbr\u003e• Cylinder head stud thread pitch (Block): M11X1.25.\u003cbr\u003e• Cylinder head stud thread pitch (Cylinder Head): M11X1.25.\u003cbr\u003e• Cylinder head stud length: 197mm.\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003eKits comprises of:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eX12 Performance studs.\u003cbr\u003eX12 Heat treated nuts.\u003cbr\u003eX12 Heat treated washers.\u003cbr\u003eX1 Sachet of Moly Grease.\u003cbr\u003eX1 Fitting Instruction Guide.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":50191806857520,"sku":"260-4704","price":1099.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/3156\/2544\/files\/SPE1051-2_800x_1a1ccc86-6c98-4cff-b150-208a5286f1be.webp?v=1759448361"},{"product_id":"arp-headstud-kit","title":"ARP Headstud kit: Mitsubishi Lancer 1-9","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eARP 207-4203 head studs for the 7-bolt 4G63 DSM and Evo 1\/2\/3\/4\/5\/6\/7\/8\/9 models. This ARP head stud kit includes a full replacement set of 10 studs, 10 washers and 10 nuts with assembly lube. The 7-bolt studs are 11mm (7\/16\").\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMitsubishi 7-Bolt 4G63\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• 1996-2006 Evolution IV V VI VII VIII IX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• 1992.5-1999 Eclipse GST\/GSX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• 1992.5-1998 Talon TSi\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• 1992.5-1994 Laser RS\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Evolution I II III CD9A CE9A\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(10) 8740 Chrome Moly Studs\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(10) Parallel Ground Washers\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(10) 8740 Chrome Moly 12 Point Nuts\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(1) Ultra-Torque Fastener Assembly Lube\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eReplacement Upgrade for these OEM Part Numbers:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMD191470\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eMore Info:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eARP 8740 Chrome Moly studs have a tensile strength of 200,000 psi. These are thread rolled after heat-treat which gives them about 1000% (10x) better fatigue strength than 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!\u003c\/span\u003e\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":50201390776624,"sku":"207-4203","price":329.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/3156\/2544\/files\/207-4203-arp-head-studs-4g63-7bolt-dsm-evo-1_1024x1024_7d0af375-cbd3-4dfc-b225-862b8971db76.webp?v=1759921573"}],"url":"https:\/\/coore.com.au\/ja\/collections\/engine-internals.oembed","provider":"Coore | Performance \u0026 Aftermarket","version":"1.0","type":"link"}