Great
Very fast processing & shipment! Neatly packaged. The studs appear to be very good quality. I have not yet installed the studs. Best of all, they send stickers!
Studs cam packaged very nicely. Came with plenty of torque/fastener lube. Went in nicely as well. I’ve only had them in my truck for 5 days but the seem to be good.
These are a great product at a great price !!!! I would absolutely recommend
These studs are just Zippy! They arrived in good condition and in a timely manner. The machining and finish are up to par, so these studs look like they will work just swell. Unless I update his review with a sad story about blown head gaskets, I would recommend these and would purchase them again. You save a few $$ over the famous brand, but I believe that the motor is not worried about a brand name, as long as it gets a sexy set of Studs screwed into it.
Manic Mike
Fucken mint.!!!!! Way better then ARP those guys can keep their overpriced shit. I’m recommending xotic to all the boys
You all can provide a additional set of the 8 mm studs and nuts and washers to help our 6bolt head customers out as you may actually be honest and only add the cost vs inflate cost like arp
I have not received my head studs for my truck
Always put some xotic stud on head gasket job!
I liked that they came with the sockets and Allen wrench to install
I have not installed these yet, however I just finished 2 of the work trucks so will be starting my build soon, they came well packaged and so far have met all my standards. Will be installing soon and will update again once I have used them
These head studs are fantastic. I see no reason to spend more. Fantastic value.
Awesome kit easy to read directions and has performed flawlessly would recommend anybody to use this kit!!
Head Stud Replacement Kit | 2001-2016 6.6L LB7 LLY LBZ LMM LML Chevy Duramax Diesel CP877
Head Stud Replacement Kit for 1998.5-2018 Dodge Cummins 5.9L 6.7L Diesel Cylinder 24V
1989-1998 Dodge Cummins 5.9L 12 Valve Models
In every diesel car, there are high cylinder pressures that can damage head gaskets. Factory OEM head bolts are torque to yield, meaning you torque the bolt to a specific torque with a final 90-degree rotation that will place the bolt at its’ maximum stretch point.
Our observation through years of dealing with trucks is that when you add parts that increase horsepower (turbocharger, injectors, chips etc.), you risk creating higher cylinder pressures lower than your RPM range, consequently leading to a blown head gasket.
In contrast to head bolts, head studs are engineered to not stretch. Xotic Performance head studs are created using premium steel alloys (XOTIC 7200) that are far superior in tensile strength to a bolt. Our head studs are threaded on top to allow for nut placement which will result in a more accurate torque of the head.
Rather than blowing your head gasket again, we highly recommend replacing your head gaskets with fasteners that have a proven track record of not stretching - so that you never have to deal with the exhaustive procedure of replacing another failed head gasket.
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. Save time and hassle by purchasing our ready machine milled rocker arm pedestals (Search Part # CP200 in our catalogue).
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.
Head studs are designed to retain cylinder seal even with today's extremely high-pressure turbo systems. These studs far exceed clamping forces provided by standard Ford head bolts.
26x Heads Studs, 26x Nuts, 26x Hardened Parallel Washer, 6x Rocker Bolts, & 1x Fastener Assembly Lubricant. Black oxide finish protects from wear and tear. Hardened parallel washers allow for uniform load distribution and accurate torque readings.
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 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?
220,000-240,000 PSI.
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.
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