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

• Fits 2001-2016 Duramax Engines: Compatible with LB7, LLY, LBZ, LMM, and LML applications.

• 190,000 PSI Tensile Strength: Heat-treated 35 chromoly steel for dependable durability.

• 12-Point Stud Design: Provides accurate torque readings and secure installation.

• Ideal for Towing & Performance Builds: Perfect for head gasket service and diesel engine upgrades.

Upgrade your diesel engine with the Top Street Performance Pro Series Duramax Cylinder Head 12-Point Stud Kit. Designed for 2001-2016 GM 6.6L Duramax diesel engines, this Duramax head stud kit provides the strength and clamping force needed to help maintain reliable cylinder head sealing in stock, towing, and performance applications. Whether you're replacing factory hardware, performing head gasket service, or building a high-performance diesel engine, this Duramax cylinder head stud kit delivers dependable retention under demanding conditions.

Stronger Cylinder Head Retention
Engineered to provide consistent clamping force, these 6.6 Duramax head studs help support cylinder head sealing and resist head lift under increased cylinder pressure. Ideal for Duramax head gasket replacement, towing applications, and performance diesel engine builds.

High-Strength Performance Construction
Manufactured from heat-treated 35 chromoly steel with a minimum tensile strength of 190,000 PSI, this diesel head stud kit is built for durability and long-term reliability. Threads are rolled after heat treatment and finished with a black oxide coating and protective oil finish for corrosion resistance and dependable performance.

Fits LB7, LLY, LBZ, LMM & LML Duramax Engines
Designed for GM 6.6L Duramax diesel applications including LB7, LLY, LBZ, LMM, and LML engine platforms. An excellent choice for stock replacement, heavy towing, diesel performance, and engine rebuild projects.

Ideal for Towing & Performance Builds
Perfect for head gasket service, engine rebuilds, towing applications, and high-cylinder-pressure diesel builds where upgraded Duramax head studs and fresh cylinder head fasteners are recommended. Performance diesel builders commonly upgrade to head studs when increasing boost levels and cylinder pressure.

What engines does this head stud kit fit?
This kit is designed for 2001-2016 GM 6.6L Duramax diesel engines, including LB7, LLY, LBZ, LMM, and LML applications.

What is the benefit of head studs over factory head bolts?
Head studs can provide more consistent clamping force and improved cylinder head retention, especially in towing and performance applications where cylinder pressure is increased.

Is this kit suitable for towing applications?
Yes. The high-strength chromoly construction makes this kit well suited for heavy towing, engine rebuilds, and demanding diesel service.

Can this kit help prevent head gasket issues?
Properly installed head studs help maintain cylinder head clamping force, which can improve head gasket retention under high cylinder pressures.

What material are the studs made from?
The studs are manufactured from heat-treated 35 chromoly steel with a minimum tensile strength of 190,000 PSI.

What is the advantage of a 12-point design?
The 12-point nuts provide improved socket engagement and help achieve accurate torque readings during installation.

Are these suitable for performance diesel builds?
Yes. They are designed for stock replacement, towing applications, and performance diesel engines operating under increased cylinder pressures.

Does the kit include corrosion protection?
Yes. The hardware features a black oxide finish and protective oil coating to help resist rust and corrosion.