OptiTorque 10413 GM LS Head Stud Kit for 2004+ Gen 4 Engines

The OptiTorque 10413 TorqueMaster Series Head Stud Kit is engineered specifically for 2004 and later GM LS Gen 4 engines with even-length head bolt configurations. This premium head stud kit delivers professional-grade fastening solutions for high-performance and demanding applications.

Key Features:

• TorqueMaster Series construction with 240,000-260,000 PSI tensile strength
• Manufactured from domestically melted American high-strength steel
• Vacuum furnace heat-treated with proprietary tempering process for optimized grain structure
• Centerless ground to ensure perfect concentricity prior to thread rolling
• Bottom nipple design for reliable installation
• Recessed hex feature aids in installation and removal
• Black oxide coating with hot temperature oil treatment for corrosion protection
• Includes forged heat-treated 12-point nuts and precision ground washers for uniform clamp load

Every fastener undergoes rigorous manufacturing processes including post-processing centerless grinding and thread rolling in the hardened state to maximize joint clamp load requirements. The kit's exceptional strength-to-value ratio makes it the professional's choice for LS engine builds requiring superior head gasket retention and reliability.