Head Stud Kit

Features:

• Fits 2001-2016 6.6L Duramax engines
• Independently tested 231,900 psi tensile strength
• Recommended for boost levels above 45 psi
• Precision centerless ground for accurate fit
• Rolled threads meet Mil-S-8879 specifications
• Exceeds performance engine fastener standards
• Improves head gasket clamping force
• Includes hardened washers and nuts
• Assembly grease included for accurate torque
• Designed for high horsepower diesel builds
• Ideal for towing racing and off-road use

Lock Down Your Duramax With Proven Stud Strength

When you’re pushing serious power out of your 6.6L Duramax, factory head bolts simply won’t cut it. The PPE 118034300 Head Stud Kit gives you the confidence to run higher boost, heavier loads, or bigger tunes without worrying about head gasket failure. Designed for the demands of towing, racing, or hard off-road use, these studs deliver the kind of holding power high-performance diesel builds rely on. PPE’s stud kit is independently tested to handle over 231,900 psi of tensile strength, offering real-world durability that holds up when the pressure is on. Whether you’re building for 45 psi of boost or more, this kit gives your heads the clamping force they need to stay sealed under stress. Every stud is precision ground for fitment and paired with hardened washers, nuts, and specially formulated assembly grease for accurate torque readings. If you’re looking for reliability you can count on in extreme conditions, this is one upgrade that delivers without question.

Precision Engineered Fasteners For High Pressure Duramax Builds

The PPE 118034300 Head Stud Kit is a performance-grade upgrade for any 2001-2016 GM 6.6L Duramax engine, engineered to exceed the strength and durability of stock fasteners. These studs are centerless ground for dimensional precision and feature threads rolled to Mil-S-8879 specifications, which enhances fatigue strength and reduces the risk of failure under load. With a verified tensile strength of over 231,900 psi, this kit offers a level of reliability that stands up to extreme boost pressures and high cylinder temperatures. It’s especially recommended for engines seeing over 45 psi of boost, where stock bolts can begin to lose their clamping force over time. The kit includes hardened parallel washers, high-strength nuts, and PPE's custom assembly lube to ensure consistent torque and even load distribution during installation. These components work together to maintain head gasket integrity, even under prolonged high-stress conditions. For builders looking to improve long-term durability and performance in their Duramax, this head stud kit is a critical part of the foundation.

Fitment: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2001-2016 GM 6.6L Duramax diesel engines
• Compatible with Silverado, Sierra, and Savana models
• Tested tensile strength exceeds 231,900 psi
• Ideal for engines running 45 psi boost or higher
• Designed to prevent head gasket failure under load
• Threads rolled to Mil-S-8879 military specifications
• Each stud is precision centerless ground for accuracy
• Includes hardened washers, nuts, and assembly grease
• Improves clamping force for high-performance builds
• Highly recommended for towing, racing, and off-road use
• Professional installation ensures proper torque and preload