{"product_id":"8740-chrome-moly-hex-head-cylinder-head-bolt-kit","title":"8740 Chrome Moly Hex Head Cylinder Head Bolt Kit","description":"The ARP 154-3601 is a high-performance cylinder head bolt kit engineered for Ford 289 and 302 engines. This kit is specifically designed to work with OEM or aftermarket cylinder heads that feature the correct 7\/16 inch bolt holes, including Edelbrock heads 60259 and 60379.\n\nConstructed from premium 8740 chrome moly steel, these bolts boast a tensile strength of 180,000 PSI, which is 15% stronger than Grade 8 fasteners. ARP utilizes a special heat-treating process and thread rolling after heat-treat, resulting in superior fatigue strength compared to many competitors. The black oxide finish provides corrosion resistance, and the hex head style allows for efficient installation.\n\nEach kit includes twenty 7\/16 inch hex head bolts (both long and short styles) and twenty hardened, parallel-ground washers to ensure proper clamping force and even load distribution. This comprehensive set is ideal for replacing worn-out original hardware or upgrading from factory components for enhanced reliability.\n\nIt is important to note that this bolt set is NOT compatible with 351W \/ 5.8L engines or Ford Performance BOSS 302 blocks that feature 1\/2 inch bolt holes. For applications requiring 1\/2 inch bolt holes, a different kit with reducer bushings\/washers is necessary.","brand":"ARP Head","offers":[{"title":"Default Title","offer_id":52686985396536,"sku":"154-3601","price":51.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687888048.jpg?v=1784879204","url":"https:\/\/store.motormia.co\/products\/8740-chrome-moly-hex-head-cylinder-head-bolt-kit","provider":"MOTORMIA","version":"1.0","type":"link"}