{"product_id":"arp-64-71-bb-chrysler-426-hemi-new-hemi-crate-motor-head-bolt-kit","title":"ARP Head Bolt Kit - 1964-1971 BB Chrysler 426 Hemi \u0026 New Hemi Crate Motor","description":"\u003cp\u003eThe ARP 145-3901 head bolt kit is listed for 1964-1971 BB Chrysler 426 Hemi \u0026amp; New Hemi Crate Motor. 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: 145-3901\u003c\/li\u003e\n\u003cli\u003eApplication\/configuration: 1964-1971 BB Chrysler 426 Hemi \u0026amp; New Hemi Crate Motor\u003c\/li\u003e\n\u003c\/ul\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.\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":68119287267578,"sku":"ARP145-3901","price":302.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/e7d80a945b4d8b45b5c301c1659fca93L.jpg?v=1794039041","url":"https:\/\/lgcracing.com\/products\/arp-64-71-bb-chrysler-426-hemi-new-hemi-crate-motor-head-bolt-kit","provider":"Legacy Racing","version":"1.0","type":"link"}