SKU: 28400945780

XDP X220 Series Head Stud Kit XD3006HS

Sale price$236.23 Regular price$262.48
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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26

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Description

XDP X220 Series Head Stud Kit XD3006HSThe XDP X220 Series Head Stud Kit XD3006HS is a must have for your high performance 2001 2016 GM 6. 6L Duramax LB7 LLY LBZ LMM LML. The OEM head bolts typically can't handle the pressure from high horsepower applications. Constructed using 8740 Chrome Moly 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.

The XDP X220 Series Head Stud Kit XD3006HS is a must have for your high performance 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML. The OEM head bolts typically can't handle the pressure from high-horsepower applications.

Constructed using 8740 Chrome Moly 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 220,000 plus psi tensile strength and 210,000 plus yield strength to keep your cylinder heads from lifting under higher combustion pressures.

A conventional 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 which allows you to obtain a more accurate torque reading.

These studs are a must-have for high-horsepower applications and are reusable, unlike the OEM Torque-To-Yield (TTY) bolts which must be replaced after each use. Another benefit of studs is they provide for easier engine assembly and proper alignment of the cylinder heads every time.

These studs are manufactured in an ISO/TS 16949 quality control facility. Includes installation instructions for a hassle-free installation.

Features:

  • Includes Washers and 12 Point Nuts
  • Yield Strength 210K psi - 230K psi
  • Tensile Strength 220K psi - 236K psi
  • Will Not Stretch Like The Factory Studs
  • Thread Has Been Rolled After Heat Treatment
  • High-Strength 8740 Chrome Moly Construction
  • 10mm Studs Test Out At A Max Load: Over 120KN
  • Manufactured In An ISO/TS 16949 Quality Control Factory
  • Reusable Compared To Torque-To-Yield (TTY) Bolts Which Are One Time Use Only

XDP Thread Cleaning Chasers (Sold Separately):
The XD40124TC and XD40128TC 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28400945780

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Bobbie
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★★★★★ 5
Fabulous and Comfy!
Size: 11 Wide, Color: Navy Blazer/Ivory
My husband loves these and wears them every weekend. They dress up an outfit but are super casual as well. We ordered the, in a second color as well.
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Reviewed in the United States on April 13, 2026
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stan kaiser
Whiting, US
★★★★★ 5
Nice shoes
Size: 12, Color: Ch Deep Olive Nubuck/Raven/Ch Lt Sesame
Nice shoes, true to size. I was looking for something that resembles the “ The Future Looks Bright “ shoes, Can’t afford them.
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Reviewed in the United States on June 1, 2026
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W. Arroyo
Pawtucket, US
★★★★★ 5
Great shoes
Size: 9.5 Wide, Color: Black/City Skyline/Egret
Great-looking casual shoes that are very comfortable to wear. Perfect for evening outings and long periods on your feet. Stylish, well-made, and comfortable from day one. Highly recommended!
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Reviewed in the United States on June 3, 2026
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Ralph J
Lake Worth, US
★★★★★ 5
Perfect casual Friday shoe with great comfort and style
Size: 10, Color: Optic White/Egret
These have quickly become my go-to shoes for casual Fridays at work. The fit is true to size, and they’re both comfortable and stylish without trying too hard. They pair really well with jeans or khakis, so they’re easy to dress up or down depending on the day.
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Reviewed in the United States on April 21, 2026
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GTC
Draper, US
★★★★★ 5
Great shoe
Size: 8, Color: British Tan
My teen loves these shoes. They have a nice contemporary styling and he says they are comfortable. Recommend.
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Reviewed in the United States on May 17, 2026

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