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Gator Head Stud Kit OEM Grade C Gasket Set Victor Reinz For 01-04 GM 6.6L Duramax
SKU:
HSK66 | HS54580 | 12637785 | 12637788
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- $1,099.99
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Take 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 & 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.
Gator’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.
Features:
- HD220 head studs rated at 220,000 PSI tensile strength
- Includes GM Grade C 1.05mm left and right head gaskets
- Victor Reinz top-end gasket kit covers all upper seals
- Black oxide coating resists rust and harsh environments
- Rolled threads for superior fatigue and torque retention
- Gator Juice assembly lube ensures proper installation
- Complete bolt-on kit for top-end engine sealing
- Ideal for performance builds, towing, and racing use
Specifications:
- Stud Material: HD220 high-strength forged alloy
- Head Gasket Grade: OEM GM Grade C – 1.05mm
- Gasket Set Brand: Victor Reinz (HS54580)
- Head Gasket PNs: 12637785 (L), 12637788 (R)
- Thread Type: Rolled after heat treatment
- Stud Finish: Black oxide corrosion-resistant
Included:
- (36) Gator Heavy Duty Head Studs
- (36) Hardened Parallel-Ground Washers
- (36) 12-Point High-Strength Nuts
- (8) Head Bolts
- (1) Bottle of Gator Juice Assembly Lube
- (1) OEM GM Head Gasket – Left Side (12637785)
- (1) OEM GM Head Gasket – Right Side (12637788)
- (1) Victor Reinz HS54580 Top-End Gasket Set
- (1) RTV Sealant & Complete Install Instructions
Fitment:
- 2001–2016 Chevy/GMC Silverado/Sierra 2500/3500 6.6L Duramax (LB7/LLY/LBZ/LMM/LML)
Notes:
- 5 Year Limited Warranty
- Follow included torque specs and sequence for install
Product Specs
SKU:
HSK66 | HS54580 | 12637785 | 12637788
Brand:
Gator Fasteners
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