{"product_id":"gator-fasteners-heavy-duty-head-stud-kit-2017-2021-chevy-gmc-6-6l-l5p-duramax-diesel-hsk66l5p","title":"Gator Fasteners Heavy Duty Head Stud Kit – 2017-2021 Chevy\/GMC 6.6L L5P Duramax Diesel (HSK66L5P)","description":"\u003cp\u003eProtect your L5P Duramax's head gaskets from the extra cylinder pressure of towing, EGR delete tunes, and bigger injectors with the Gator Fasteners Heavy Duty Head Stud Kit for 2017-2021 Chevrolet and GMC 6.6L L5P Duramax diesel trucks. Factory torque-to-yield head bolts stretch and lose clamping force over repeated heat cycles — this kit replaces them with reusable, precision-machined studs that deliver consistent, repeatable clamping load every time the heads are serviced.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMade from HD220 high-strength material rated to 220,000 PSI tensile strength\u003c\/li\u003e\n\u003cli\u003eRolled threads after heat treating for maximum fatigue strength and thread integrity\u003c\/li\u003e\n\u003cli\u003ePrecision machined and heat treated for consistent torque values\u003c\/li\u003e\n\u003cli\u003eComplete kit includes studs, washers, and nuts for both cylinder heads\u003c\/li\u003e\n\u003cli\u003eIncludes Gator Juice assembly lubricant for accurate torque readings on install\u003c\/li\u003e\n\u003cli\u003eFits: 2017-2021 Chevrolet Silverado 2500\/3500 HD and GMC Sierra 2500\/3500 HD with the 6.6L L5P Duramax diesel engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMfg Part #: HSK66L5P. A smart upgrade for any L5P Duramax being tuned, towed hard, or built for long-term reliability.\u003c\/p\u003e","brand":"Gator Fasteners","offers":[{"title":"Default Title","offer_id":67619052814496,"sku":"GTF-HSK66L5P","price":732.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/GTFHSK66L5P_1.jpg?v=1790795528","url":"https:\/\/obsrevivalparts.com\/products\/gator-fasteners-heavy-duty-head-stud-kit-2017-2021-chevy-gmc-6-6l-l5p-duramax-diesel-hsk66l5p","provider":"OBS Revival Parts","version":"1.0","type":"link"}