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Head Stud Replacement Kit for 2001-2016, 6.6L LB7 LLY LBZ LMM LML Chevy Duramax Diesel Models with Head Studs Nuts Washers & Assembly Lubricants Xotic Performance CP877

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$319.23

$ 99 .00 $99.00

In Stock
  • PERFECT FIT: Our replacement studs are compatible with cylinder heads of 2001 - 2016 LB7 LLY LBZ LMM LML Chevy Duramax Diesel engines. Engineered to unleash more performance out of your vehicle.
  • INDESTRUCTIBLE TENSILE STRENGTH: This head stud kit has an Intuitive design combined with specially formulated steel alloy ensuring that these studs have incredibly strong tensile strength compared to standard bolts.
  • KIT INCLUDES: Our head stud bolt kit has 36 head studs, 36 nuts, 36 hardened parallel washers, 8 rocker bolt fastener assembly lubricant, and instructions manual. Hardened parallel washers allow for uniform load distribution and accurate torque readings.
  • OPTIMUM DESIGN: Broached stud ends deliver a straightforward design that is quick and easy to install. Head studs are designed to retain cylinder seals even with today's extremely high-pressure turbo systems. These studs far exceed the clamping forces provided by standard head bolts.
  • EASY INSTALLATION: This cylinder head kit needs proper installation. It includes manual as illustrated, step-by-step instructions so you can get your vehicle back on the road quickly.



Product Description

designed for champions
strong
seamless
seal
5
head studs competition

Metallurgy & Failure Analysis

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

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Merchant Video

Join us on a journey through precision engineering and see firsthand how our head studs stand up to the ultimate tests. This isn't just about parts; it's about power, endurance, and the relentless pursuit of performance.


Tyler
2025-09-05 11:06:43
So far the quality seems really good and I mean I was really inspecting them when I opened them up. I don’t see how these can go wrong. Comes with both size sockets you need and Allen key. Comes with packet of anti seize and it’s plenty you don’t have to be careful with it either. As of right now I say save your hard earned money and go with these over the other brands that want twice as much for them. I was a little skeptical but called and asked a few shops that use them and they recommended them over the other brands and have had great luck with them I hope they keep up the good quality and blow ARP out the water with sales, really no excuse that they can be made this good for half the price!
Samantha Cox
2025-08-30 14:53:31
Didn’t expect much from these, i was wrong. Lbz duramax. Making around 700 wheel and i beat the absolute dog out of my truck, still holding strong. If you’re debating getting these as a cheaper route from ARP, DO IT.
amy
2025-08-01 18:04:59
I recently rebuilt my LLY Duramax and went back together with these studs. The packaging was great, all torqued down as expected. I have a few thousand miles on the build and so far so good. These are much more reasonable than ARP.
Dontmesswithtessa
2025-07-24 12:43:58
I bought these as an alternative to the ARP ones that were twice the cost and so far so good. The rebuilt engine only has 3000 miles on it but I’ll update my review if there end up being any problems.
Krista
2025-07-14 12:31:07
I needed to do head gaskets and so decided to buy these instead of the expensive name brand. These were nicer
Gabrielle Woodson
2025-06-09 21:47:24
So far so good, very well packaged product. Very good tensile strength ratings, would compare it to ARP for a fraction of the price. I just installed on my lb7 and so far so good.
Chris D.
2025-03-30 15:16:13
Work as expected better then the stock head bolts
william
2025-03-20 20:28:04
they came fast and packaged well, i am still in the process of installing them , but my initial impression is that they look to be very high quality.
I have no life
2025-03-07 15:43:17
Put these in my LMM with a 450 hp tune and they’re holding up great after 50,000 km. Unfortunately my truck got written off so I won’t be able to say anything for long-term results.
Noah Thompson
2025-03-02 18:19:54
Install procedure was same as arp studs, I sold the truck shortly after so can't speak to if they held up or not. Everything about them seemed identical to arp, and I like supporting Canadian 🇨🇦
derreldesroches
2025-03-01 16:55:17
as pictured
Colten
2025-02-06 14:27:22
Great packaging. Everything sealed in easy to open bags. Not thrown together.
Andrew
2025-02-03 17:10:14
They seem to be just as good as arp quality wise and fit and finish, run them in my personal truck with 60 overs and 64.5 borg charger, we use them in customers trucks at work doing head gasket jobs and also a good friend runs them in his duramax that’s probably around 700hp they seem to hold up good not once issue yet in several sets
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