XDP XD3007MS MAIN STUD KIT FOR 01-05 GM 2500/3500HD WITH DURAMAX ENGINE

The XDP X220 Main Stud Kit XD3007MS is essential for setting up your 2001-2005 GM 6.6L Duramax LB7/LLY for competition or street use. OEM main bolts typically struggle to handle the pressure in high-horsepower engines.

Constructed using an 8740 Chromoly with an added proprietary element ensures these studs are more durable and will not stretch like the factory bolts. The threads are rolled after heat-treating to deliver optimum fatigue strength. These studs are rated at 210,000-230,000 psi yield strength and 220,000-236,000 psi tensile strength to ensure a strong hold under higher combustion pressures.

In addition to the increased strength, replacing the main bolts with studs also allows you to obtain a more precise torque reading. A bolt gets twisted as it is tightened, so it's reacting to two different forces at the same time.

With a stud the force gets applied to the vertical axis, resulting in a more even clamping force. These are a must have for high-performance applications and are reusable, unlike the OEM Torque-To-Yield (TTY) bolts which must be replaced after each use.

Furthermore, they can help offer easier engine assembly and proper alignment of the main bearing caps every time. Included in this kit are 12-point nuts, washers, installation instructions. Assembly lubricant sold separately.

Features:

• Includes 12-Point Nuts & Washers
• Yield Strength: 210,000-230,000 PSI
• Tensile Strength: 220,000-236,000 PSI
• Threads Rolled After Heat Treatment
• Reusable Studs, Unlike TTY OEM Bolts
• 10mm Studs Test Out At Max Load Of Over 120KN
• 8740 Chromoly Construction With Added Proprietary Element

Tech Tips:
XDP Thread Cleaning Chasers (Sold Separately):
Both the XD40126TC and XD40125T are a great add-on that will be critical during installation. Thread Cleaning Chasers are an excellent tool to have on-hand to ensure you have properly cleaned the threads in your engine block before the installation of any fasteners. Clean threads provide accurate torque readings and will help give you peace of mind during your engine build or head gasket repair.

XDP X-TRA Slick Engine & Fastener Assembly Lubricant (Sold Separately):
The use of XD541 is highly recommended during engine assembly. Apply XDP X-TRA Slick Lubricant to head studs, head bolts, main studs, main bolts, connecting rod bolts, and any other fasteners used during engine assembly.

Using a proper assembly lubricant during fastener installation reduces friction and torque pre-load scatter in the torquing sequence, while also helping to prevent thread galling and seizing.

The XDP XD3007MS Main Stud Kit is a vital upgrade for those looking to enhance the performance of their 2001-2005 GM 6.6L Duramax LB7/LLY engines. Designed specifically for both competition and daily street applications, this kit addresses the shortcomings of OEM main bolts, which often fall short under the intense demands of high-horsepower setups.

Crafted from robust 8740 Chromoly material infused with a proprietary element, these main studs provide superior durability and resistance to stretching compared to standard factory bolts. With an impressive yield strength of 210,000-230,000 psi and tensile strength of 220,000-236,000 psi, they are engineered to withstand heightened combustion pressures, ensuring your engine maintains its performance integrity under extreme conditions.

In addition to their formidable strength, the XDP XD3007MS Main Studs facilitate more accurate torque readings, as they eliminate the twisting and variable forces associated with conventional bolts. This precision translates to a more uniform clamping force, leading to enhanced overall performance. Designed for reusability, these studs offer an economical solution compared to Torque-To-Yield (TTY) OEM bolts, which must be replaced after each installation.

The kit also includes 12-point nuts and washers for a complete setup, making engine assembly straightforward. Proper alignment of the main bearing caps is facilitated, allowing for a seamless installation process.

Completing your installation can be enhanced with XDP Thread Cleaning Chasers and X-TRA Slick Engine & Fastener Assembly Lubricant, both sold separately, ensuring optimal thread cleanliness and reducing friction during assembly. The XDP XD3007MS Main Stud Kit stands as an essential enhancement for Duramax engines, offering reliability and performance that enthusiasts demand.