Top Street Performance Pro Series Cylinder Head 12-point Stud Kit for 01-16 GM Duramax Diesel 6.6L

TSP's fasteners are composed of 35 chromoly steel for a minimum tensile strength of 190,000 PSI. Threads are rolled after heat treatment and then tested for tensile and yield strength. All hardware is then given a black oxide finish and oil coating to protect from rust and corrosion.COMPATIBLE WITHGM DURAMAX DIESEL V8 6.6L / 403 in³ Duramax (LB7, LLY, LBZ, LMM, LML)COMMON VEHICLE APPLICATIONSChevrolet Silverado HD (2001–2016 6.6L Duramax)GMC Sierra HD (2001–2016 6.6L Duramax)Performance towing and diesel upgrade applicationsNOTESDesigned for 2001–2016 GM Duramax 6.6L cylinder head stud applications.Verify engine code, head gasket selection, torque procedure, and model year before installation.Not compatible with 2017+ L5P Duramax unless specifically confirmed.Specifications:Torque3 steps, to 125 ft-lbsColorBlackFastener StyleStudGradePerformanceHead Style12-pointMaterial35 Chromoly SteelQuantitySold as a kit

• Fits GM Duramax 6.6L diesel applications; verify engine generation before ordering
• Stud kit with 12-point hardware and 35 Chromoly Steel construction for performance engine builds
• Provides strong, consistent clamping force to support head gasket sealing and cylinder pressure control
• Application-specific torque procedure listed in specs: 3 steps, to 125 ft-lbs