{"product_id":"xdp-x220-series-head-stud-kit-2017-2023-gm-6-6l-duramax-l5p","title":"XDP X220 Series Head Stud Kit 2017-2023 GM 6.6L Duramax L5P","description":"\u003cp\u003eUpgrade the OEM head bolts on your 2017-2024 GM 6.6L Duramax L5P when you purchase the XDP X220 Series Head Stud Kit XD3017HS. Upgrading the factory head bolts is a must when start adding horsepower and torque to your Silverado\/Sierra.\u003c\/p\u003e\u003cp\u003eThe factory bolts typically can't handle the additional pressure in high-performance applications which can lead to the cylinder heads lifting. Upgrading to the XDP head studs helps to keep the cylinder heads locked down and avoid potential head gasket failures.\u003c\/p\u003e\u003cp\u003eConstructed using an 8740 Chromoly Steel with an added proprietary element ensures these studs are stronger and will not stretch like the stock bolts. The threads are rolled after heat-treating to deliver maximum fatigue strength.\u003c\/p\u003e\u003cp\u003eThese studs are rated at 205,000+ psi yield strength and 225,000+ psi tensile strength to ensure a strong hold under higher combustion pressures.\u003c\/p\u003e\u003cp\u003eIn addition to the increased strength, replacing the head bolts with studs also allows you to obtain a more accurate torque reading. A conventional bolt gets twisted as it is tightened, so it's reacting to two different forces at the same time.\u003c\/p\u003e\u003cp\u003eWith a stud the force gets applied to the vertical axis, resulting in a more even clamping force. Another benefit of studs is they allow for easier engine assembly and proper alignment of the cylinder heads every time.\u003c\/p\u003e\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. Included with the studs are washers and 12-point nuts. Assembly lubricant sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes Washers \u0026amp; 12-Point Nuts\u003c\/li\u003e\n\u003cli\u003eYield Strength 205K psi - 215K psi\u003c\/li\u003e\n\u003cli\u003eTensile Strength 225K psi - 233K 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 Chromoly Steel Construction\u003c\/li\u003e\n\u003cli\u003e10mm Studs Test Out At A Max Load: Over 120KN\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\u003cp\u003eTEch Tips:\u003cbr\u003e\u003cstrong\u003eXDP Thread Cleaning Chasers (Sold Separately):\u003c\/strong\u003e\u003cbr\u003eThe XDP Thread Cleaning Chasers XD40124TC \u0026amp; XD40128TC are the perfect add-on to any head stud installation. Using Thread Cleaning Chasers ensures that you are able to properly clean the threads in your engine block before the installation of any studs or fasteners.\u003c\/p\u003e\u003cp\u003eClean threads will provide you with accurate torque readings which are critical to your head gasket repair, or engine build.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eXDP X-TRA Slick Engine \u0026amp; Fastener Assembly Lubricant (Sold Separately):\u003c\/strong\u003e\u003cbr\u003eThe use of XD541 is highly recommended during engine assembly. Apply XDP X-TRA Slick Lubricant to head studs, head bolts, main studs, main bolts, connecting rod bolts, and any other fasteners used during engine assembly. Using a proper assembly lubricant during fastener installation reduces friction and torque pre-load scatter in the torquing sequence, while also helping to prevent thread galling and seizing.\u003c\/p\u003e","brand":"XDP","offers":[{"title":"Default Title","offer_id":48964924834069,"sku":"HVCD_XD3017HS","price":574.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/6844\/1109\/files\/XD3017HS-HVCD.jpg?v=1748455293","url":"https:\/\/shop.davesusa.com\/products\/xdp-x220-series-head-stud-kit-2017-2023-gm-6-6l-duramax-l5p","provider":"Dave's Auto Center","version":"1.0","type":"link"}