{"product_id":"gator-head-stud-kit-oem-grade-c-gasket-set-victor-reinz-for-01-04-gm-6-6-duramax","title":"Gator Head Stud Kit OEM Grade C Gasket Set Victor Reinz For 01-04 GM 6.6L Duramax","description":"\u003cp\u003eTake your Duramax build to the next level with this 4-piece premium top-end bundle. It includes the Gator Fasteners HSK66 Heavy Duty Head Stud Kit, OEM GM Grade C Head Gaskets (12637785 \u0026amp; 12637788), and the Victor Reinz HS54580 Upper Gasket Set—everything you need for a high-performance head sealing solution on your 2001–2016 GM 6.6L Duramax. Whether you're pushing more boost, towing heavy, or doing a full engine refresh, this kit delivers the strength and reliability your build demands.\u003c\/p\u003e\n\u003cp\u003eGator’s HD220 head studs are rated at a massive 220,000 PSI tensile strength, providing unmatched clamping force to eliminate head lift in high-pressure applications. The Grade C head gaskets feature 1.05mm thickness for OE-grade sealing under extreme combustion. The Victor Reinz gasket set rounds it out with all the critical upper engine gaskets and seals—including intake, exhaust, valve cover, and RTV sealant—making this bundle the ultimate solution for LB7 through LML Duramax owners ready for serious performance or complete top-end service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHD220 head studs rated at 220,000 PSI tensile strength\u003c\/li\u003e\n\u003cli\u003eIncludes GM Grade C 1.05mm left and right head gaskets\u003c\/li\u003e\n\u003cli\u003eVictor Reinz top-end gasket kit covers all upper seals\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating resists rust and harsh environments\u003c\/li\u003e\n\u003cli\u003eRolled threads for superior fatigue and torque retention\u003c\/li\u003e\n\u003cli\u003eGator Juice assembly lube ensures proper installation\u003c\/li\u003e\n\u003cli\u003eComplete bolt-on kit for top-end engine sealing\u003c\/li\u003e\n\u003cli\u003eIdeal for performance builds, towing, and racing use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStud Material: HD220 high-strength forged alloy\u003c\/li\u003e\n\u003cli\u003eHead Gasket Grade: OEM GM Grade C – 1.05mm\u003c\/li\u003e\n\u003cli\u003eGasket Set Brand: Victor Reinz (HS54580)\u003c\/li\u003e\n\u003cli\u003eHead Gasket PNs: 12637785 (L), 12637788 (R)\u003c\/li\u003e\n\u003cli\u003eThread Type: Rolled after heat treatment\u003c\/li\u003e\n\u003cli\u003eStud Finish: Black oxide corrosion-resistant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(36) Gator Heavy Duty Head Studs\u003c\/li\u003e\n\u003cli\u003e(36) Hardened Parallel-Ground Washers\u003c\/li\u003e\n\u003cli\u003e(36) 12-Point High-Strength Nuts\u003c\/li\u003e\n\u003cli\u003e(8) Head Bolts\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e(1) Bottle of Gator Juice Assembly Lube\u003c\/li\u003e\n\u003cli\u003e(1) OEM GM Head Gasket – Left Side (12637785)\u003c\/li\u003e\n\u003cli\u003e(1) OEM GM Head Gasket – Right Side (12637788)\u003c\/li\u003e\n\u003cli\u003e(1) Victor Reinz HS54580 Top-End Gasket Set\u003c\/li\u003e\n\u003cli\u003e(1) RTV Sealant \u0026amp; Complete Install Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2001–2016 Chevy\/GMC Silverado\/Sierra 2500\/3500 6.6L Duramax (LB7\/LLY\/LBZ\/LMM\/LML)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5 Year Limited Warranty\u003c\/li\u003e\n\u003cli\u003eFollow included torque specs and sequence for install\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Gator Fasteners","offers":[{"title":"Default Title","offer_id":46965883043997,"sku":"HSK66 | HS54580 | 12637785 | 12637788","price":1099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/HSK66_HS54580_12637785_12637788_No_logo.jpg?v=1751296596","url":"https:\/\/rudysdiesel.com\/products\/gator-head-stud-kit-oem-grade-c-gasket-set-victor-reinz-for-01-04-gm-6-6-duramax","provider":"Rudy's Performance Parts","version":"1.0","type":"link"}