OptiTorque 10661 Patriot Series Head Stud Kit Ford 5.0L Coyote 11mm

The OptiTorque 10661 Patriot Series Head Stud Kit is engineered specifically for Ford 5.0L Coyote engines, delivering enhanced cylinder head clamping force and reliability for performance builds. This 11mm head stud kit provides a cost-effective upgrade over factory head bolts for naturally aspirated and forced induction applications.

Key Features:

• Constructed from vacuum-melted, micro-alloyed American HSLA steel for superior strength
• Heat treated and tempered to achieve optimized fine grain structure
• 200 ksi tensile strength rating (equivalent to ARP 2000 specification)
• Forged high-strength 12-point nuts for improved grip and security
• Precision ground load-distributing washers ensure uniform clamp load
• Black oxide coating with high-temperature oil for corrosion protection
• Recessed hex feature aids installation and removal
• Fully stress-relieved and centerless ground for maximum straightness
• Thread rolled after heat treatment for extended fatigue resistance

OptiTorque Patriot Series fasteners are 100% manufactured in the USA using domestically melted premium steel. Each stud features a bottoming boss on the block end, eliminating the need for special holding tools during installation. These premium fasteners utilize all available factory block threads to properly distribute stress loads throughout the joint.