SKU: 28400945780

XDP X220 Series Head Stud Kit XD3006HS

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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
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Exchange/Return Notes
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SKU: 28400945780

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4.1 ★★★★★
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L. Janus
Fort Morgan, US
★★★★★ 4
Another Great Book
Format: Hardcover
I've read all his books, which are very good, but it's getting hard to tell them apart.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
Z
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zipp
Whiting, US
★★★★★ 5
Gives a realistic perspective of ETs.
Format: Hardcover
The author is a brilliant man with a wealth of knowledge on the subject.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
N
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Ned Barnett
Lexington, US
★★★★★ 3
When a pop-science author with a sense of humor alienates half his readership because ...
Format: Hardcover
This is a short but interesting and truly fascinating book, and I liked the author's description of what to do with your first alien encounter. IN part because my wife and I are writing a novel on a famous UFO encounter that occurred in rural Kentucky in 1955, and gave us the term "little green men. " I used to write for UFO Magazine, and have written books on the subject that were NOT novels, but factual (as I see them) real encounters with something Not of This Earth. How this author addressed these incidents is a hoot. Or it was ... This book remined me of Max Brook's first book on Zombies, yhe one that led up to his World War Z book. HOWEVER, at some point, this otherwise interesting Astro-physicist felt he had to vent his own personal political spleen for or against Trump. I was NOT interested in his views - I imagine if he reads my forthcoming book on UFOs, or the next one in the queue, on how to market and promote your books, he won't be interested in my political beliefs (almost certainly I'm either too far to the Left or too far to the Right for his taste). I thought he was brilliant. Now I see him "alienating" half of his potential reading audience, which isn't at all brilliant. It might even be "dumb as a tree stump." It's different from some authors/scholars - for instance, military historian Victor Davis Hansen of the Hoover Institute at Stanford University has written a book about his political preference, and does a daily (or more frequent} video blog on the subject, but when he sets out to dissect the Peloponnesian Wars or the current war on Iranian terror, he treats these as an historian, and not as an opinionated political activist. He may offend or reinforce my historical views, but when it comes to his areas of expertise (his recent World Wars Two book about how WW-II was really five or six different wars going on at the same time) is brilliant, regardless of his political views, which are not material to his remarkable historical scholarship. The author of Take Me To Your Leader should have taken a page from VDH's book (literally and figuratively). I'm not sure I can actually go back to where I left off and still appreciate what this scientist says about UFOs and aliens (tongue firmly planted in cheek - it's a funny book) without fuming about his political views. Our nation is so politically divided that I would say to all writers - unless they're writing about politics, don't show your views to your reader - you'll P.O. half of them, at least. Oh, well, it was fun (and funny) while it lasted.
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Reviewed in the United States on May 21, 2026
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Eyedoc314
Massapequa, US
★★★★★ 5
Delightful and thought-provoking!
Format: Audiobook
Absolutely delightful and thought-provoking Audio book, read by Tyson himself. (An excellent companion volume to Hegseth’s “Take me to Your Liter”. )
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Reviewed in the United States on May 25, 2026
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SA
Waukegan, US
★★★★★ 5
Quick read, entertaining & informative
Format: Hardcover
This book can be enjoyed on several levels. It could be tongue-in-cheek or satire, but is also backed by facts and conjecture by one of the world’s greatest scientific thinkers. I think Dr. Tyson had fun writing it, and i certainly had fun reading it. And I learned a lot.
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Reviewed in the United States on May 29, 2026

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