034Motorsport 11mm Head Stud Kit EA839 2.9T/3.0T

The 034Motorsport Head Stud Kit, 11mm, EA839 2.9T/3.0T is designed for customers looking to safely increase and maximize power on the EA839 platform. As boost pressure and cylinder pressure rise with more aggressive tuning, factory torque-to-yield head bolts can stretch and lose clamping force, particularly under sustained heat and load. These 11mm head studs are engineered to remove that limitation and provide the clamping force required for high-power operation.

Manufactured from high-strength tool steel and laboratory verified to exceed 270,000 psi tensile strength, these studs are 80% stronger than OE head bolts and fully reusable. They help prevent head lift during extended pulls, track use, and other high-duty-cycle driving, allowing tuners and builders to run higher boost and increased power levels confidently.

If you are already in the engine installing head studs, this upgrade pairs perfectly with our Bottom End Package for EA839 2.9T or EA839 3.0T to reduce multiple stress points at once and maximize long-term durability. Together, these upgrades help support higher power levels with greater confidence under demanding use.

Head Stud Kit Features:

Studs

• Utilizes M11 (11mm) High-Strength Tool Steel Studs
• Manufactured From High-Strength Tool Steel
• Able to Support High Power Builds
• Hex-Drive End For Easy Installation
• Tensile Strength Beyond 270,000 psi (1850 N/mm²), Laboratory Verified using ASTM F606/F606M-25 Testing Standards
• 80% Stronger Than OE Head Bolts
• Reusable Design Unlike OE Torque-To-Yield Bolts

Nuts

• Manufactured From High-Strength Tool Steel
• Strength Matched To The Studs
• 12-Point Drive For Precise And Consistent Tightening Torque

Note: Engine block and cylinder head machining or modification is required to accept these M11 head studs.

Part Number Interchange:

• WHT 005 739 (B9)
• 06E 103 385 (B8)
• WHT 005 739 (B8)

What’s Included:

• (16x) M11 (11mm) Studs
• (16x) M11 Nuts
• (16x) M11 Washers
• Assembly Paste