{"product_id":"arp-426-hemi-1-2in-12pt-head-stud-kit","title":"ARP 8740 Chromoly Head Stud Kit - 426 Hemi 1\/2 in | 12-Point Nuts","description":"\u003cp\u003eThe ARP 245-4202 head stud kit is listed for 426 Hemi 1\/2 in. The fasteners secure the cylinder head to the block; their application, installed length and preload must work with the chosen head and gasket arrangement.\u003c\/p\u003e\u003ch3\u003eTechnical Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 245-4202\u003c\/li\u003e\n\u003cli\u003eApplication\/configuration: 426 Hemi 1\/2 in\u003c\/li\u003e\n\u003cli\u003eSpecified configuration: 12-Point\u003c\/li\u003e\n\u003cli\u003eMaterial: 8740 chrome moly\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e8740 chrome moly is a heat-treatable alloy steel used for strength and fatigue resistance in engine fasteners. Correct preload and joint preparation remain essential to the assembled connection.\u003c\/p\u003e\u003ch3\u003eSelection Guidance\u003c\/h3\u003e\u003cp\u003eFastener preload supplies the clamping force at the head-to-block joint. Gasket sealing also depends on suitable deck finish, component condition and the correct assembly procedure.\u003c\/p\u003e\u003cp\u003eMatch the engine and any specified aftermarket cylinder heads or block to the listed configuration. Do not assume that related engines use the same fastener dimensions. Pay particular attention to the stated 12-Point configuration.\u003c\/p\u003e\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\u003cp\u003eCheck block threads, fastener engagement and cylinder-head clearance during trial assembly. Follow the instructions for this exact part number, including lubricant locations, washer orientation and tightening sequence. Washer seating and lubrication requirements vary by kit.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":68119361782010,"sku":"ARP245-4202","price":347.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/89d6c150b71fca2de289affa2b6ac46bL.jpg?v=1794039677","url":"https:\/\/lgcracing.com\/products\/arp-426-hemi-1-2in-12pt-head-stud-kit","provider":"Legacy Racing","version":"1.0","type":"link"}