INDESTRUCTIBLE TENSILE STRENGTH
XOTIC 7200 material properties allow for far greater tensile strength compared to 8740 chromoly steel head studs. Threads are rolled after heat treatment for optimum fatigue strength. Premium quality inspection standards ensure you'll never get a blow head gasket again. Please see vehicle fitment tab below to ensure accurate fitment.
Broached stud ends install & make cylinder head removal easier. Engineered to unleash more performance out of your vehicle. Ample clamping strength prevents cylinder heads from lifting.
ULTRA CLAMPING FORCE
Head studs are designed to retain cylinder seal even with today's extreme high pressure turbo systems. These studs far exceed clamping forces provided by standard Duramax head bolts.
NUTS & WASHERS INCLUDED
36x Heads Studs, 36x Nuts, 36x Hardened Parallel Washer, 8x Rocker Bolts Fastener Assembly Lubricant & Instructions Manual. Black oxide finish protects from wear and tear. Hardened parallel washers allow for uniform load distribution and accurate torque readings.
INSTRUCTIONS INCLUDED WITH DRAWN DIAGRAMS
All details including torque recommendations are included in the manual for your reference.
Do you have any certificate/tensile strength exam that can attest to the tensile strength you advertise?
Yes, please click on the following link for a tensile strength report by Atrona Labs. We test our head studs extensively to ensure premium quality standards. The video demonstrated in this short preview highlights the one of many spot inspections performed for our head studs.
Why choose Xotic Performance head studs over other head studs?
The answer is simple - our long term vision is to provide premium performance products at an affordable price any car enthusiast can afford. We understand we're a relatively new company, but that doesn't change the quality of products you receive. Our head studs have been put to the test by the thousands, and we can assure you you're getting quality for an affordable price.
Do you offer military discount?
We do offer military discount.
Please fill out the following form: https://www.xotic-performance.com/pages/military-discount
Are these head studs reusable?
If you performed the original install following the torque sequence correctly as highlighted in our manual, and there are no visible signs of damage, they can be re-used.
Do these head studs come with paperwork?
Detailed instructions are included as part of the kit.
Does the kit include an assembly lube?
Yes. Assembly lubricant is included as part of the kit.
What is the tensile strength?
What material are they made of?
XOTIC 7200 head studs are made from premium steel alloys that allow for far greater tensile strength compared to 8740 chromoly steel head studs.
Do these come with instructions/torque sequence for replacing 1 at a time with the heads on?
This kit includes instructions with torque spec and sequence.
LB7 (Found in 2001 - Early 2004 models, 8th Digit of VIN is 1)
LLY (Found in Late 2004 - 2005 models, 8th Digit of VIN is 2)
LBZ (Found in 2006 - Early 2007 models, 8th Digit of VIN is D)
LMM (Found in Late 2007 - Early 2011 models, 8th Digit of VIN is 6)
LML (Found in Late 2011 - Current models, 8th Digit of VIN is 8)
- 36x Heads Studs
- 36x Nuts
- 36x Hardened Parallel Washer
- 8x Rocker Bolts
- 1x Fastener Assembly Lubricant
- 1x Instructions Manual.
Head Stud Replacement Kit | 2001-2016 6.6L LB7 LLY LBZ LMM LML Chevy Duramax Diesel CP877
Used them on a customers LB7 tow rig and so far so good! I will for sure be using these again on the next stud job
Easy install and feel like its a dependable product
Great and fast delivery. But didn't get my stickers to show the product off tbat is in my engine
Quality seems good so far. Only time will tell. Still better than factory bolts, I’m not planning on big boost, so I don’t expect any problems.