{"product_id":"xd3018hs","title":"XDP X220 Series Head Stud Kit XD3018HS","description":"\u003cp\u003eReplace the weak OEM head bolts on your 2011-2021 6.7L Powerstroke with the XDP X220 Series Head Stud Kit XD3018HS. Upgrading the factory head bolts is a must when you start adding horsepower and torque to your Super Duty.\u003c\/p\u003e\n\u003cp\u003eThe stock head bolts can struggle to handle the additional pressure in high-performance applications which leads to the cylinder head lifting. Upgrading to head studs helps to keep the cylinder heads locked down and avoid head gasket failures.\u003c\/p\u003e\n\u003cp\u003eConstructed using an 8740 Chrome Moly with an added proprietary element ensures these studs will not stretch like the stock bolts. The threads are rolled after heat-treating to deliver optimum fatigue strength.\u003c\/p\u003e\n\u003cp\u003eThese studs are rated at 210,000 plus psi yield strength and 220,000 plus psi tensile strength to ensure a strong hold under higher combustion pressures.\u003c\/p\u003e\n\u003cp\u003eIn addition to the upgraded strength, replacing the head bolts with studs also allows you to obtain a more precise torque reading. A bolt gets twisted as it is tightened, so it's reacting to two different forces at the same time.\u003c\/p\u003e\n\u003cp\u003eWith a head stud the force gets applied to the vertical axis, resulting in a more even clamping force. Another benefit of studs is they can help offer easier engine assembly and proper alignment of the cylinder heads every time.\u003c\/p\u003e\n\u003cp\u003eThese are a must-have for high-performance applications and are reusable, unlike the OEM Torque-To-Yield (TTY) bolts which must be replaced after each use. These studs are manufactured in an ISO\/TS 16949 quality control facility. Included with the studs are 12-point nuts and washers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes Washers and 12-Point Nuts\u003c\/li\u003e\n\u003cli\u003eYield Strength 210K psi - 230K psi\u003c\/li\u003e\n\u003cli\u003eTensile Strength 220K psi - 236K psi\u003c\/li\u003e\n\u003cli\u003eWill Not Stretch Like The Factory Studs\u003c\/li\u003e\n\u003cli\u003eThread Has Been Rolled After Heat Treatment\u003c\/li\u003e\n\u003cli\u003eHigh-Strength 8740 Chrome Moly Construction\u003c\/li\u003e\n\u003cli\u003e10mm Studs Test Out At A Max Load: Over 120KN\u003c\/li\u003e\n\u003cli\u003eManufactured In An ISO\/TS 16949 Quality Control Factory\u003c\/li\u003e\n\u003cli\u003eStuds Are Reusable, Unlike Torque-To-Yield (TTY) Bolts Which Much Be Replaced After Each Use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eXDP Thread Cleaning Chasers (Sold Separately):\u003c\/strong\u003e\u003cbr\u003eBoth the XD40125TC, and XD40128TC are a great add-on that will be critical during installation. Thread Cleaning Chasers are an excellent tool to have on-hand to ensure you have properly cleaned the threads in your engine block before the installation of any fasteners. Clean threads provide accurate torque readings and will help give you peace of mind during your engine build or head gasket repair.\u003c\/p\u003e","brand":"XDP Xtreme Diesel Performance","offers":[{"title":"Default Title","offer_id":47077778293020,"sku":"XD3018HS","price":825.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0092\/1619\/6665\/products\/XD3018HS-HVCD.jpg?v=1697812664","url":"https:\/\/holdersdiesel.com\/en-ca\/products\/xd3018hs","provider":"Holders Diesel Performance","version":"1.0","type":"link"}