{"product_id":"350-455-3-8-ss-12pt-header-bolt-kit","title":"ARP 350-455 3\/8 SS 12pt header bolt kit","description":"\u003cp\u003e\u003cstrong\u003eARP 350-455 3\/8 SS 12pt header bolt kit\u003c\/strong\u003e (ARP Part #420-1201) is a precision-engineered fastener from ARP, the world leader in high-performance fasteners for the automotive industry.\u003c\/p\u003e\n\n\u003cp\u003eThis bolt kit features ARP's legendary quality and precision manufacturing. Each bolt is manufactured to aerospace standards with precise thread rolling and consistent heat treatment.\u003c\/p\u003e\n\n\u003cp\u003eEvery ARP fastener is precision CNC-machined from premium raw materials. The manufacturing process includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCold-forging for superior grain structure\u003c\/li\u003e\n\u003cli\u003ePrecision thread rolling (not cutting) for maximum strength\u003c\/li\u003e\n\u003cli\u003eHeat treatment to exact specifications\u003c\/li\u003e\n\u003cli\u003eMagnetic particle inspection for quality assurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 3\/8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style:\u003c\/strong\u003e 12-Point\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Ideal for high-performance street engines, racing applications, turbocharged and supercharged builds, and any application where fastener reliability is critical.\u003c\/p\u003e\n\n\u003cp\u003eTrust ARP - the choice of professional engine builders and motorsport teams worldwide. When engine reliability matters, choose ARP.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default","offer_id":51799324295462,"sku":"420-1201","price":47.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/arp-420-1201_xl_4d9b092a-fe5f-4dba-983a-ea43eafbd0aa.jpg?v=1766061747","url":"https:\/\/billysspeedshop.com\/fr\/products\/350-455-3-8-ss-12pt-header-bolt-kit","provider":"Billys Speed Shop","version":"1.0","type":"link"}