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Product Description
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INDESTRUCTIBLE TENSILE STRENGTHRated at 220,000 psi tensile strength. Threads rolled after heat treatment for optimum fatigue strength. Premium quality inspection standards ensure you'll never get blown head gaskets again. |
OPTIMUM DESIGNBroached stud ends install & make cylinder head removal easier. Installation manual is included with drawn diagrams to ease the installation process. |
ULTRA CLAMPING FORCEHead 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 head bolts. |
NUTS & WASHERS INCLUDEDHardened parallel washers allow for uniform load distribution and accurate torque readings. |
Head studs vs Head Bolts
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 inspecting and repairing diesel 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 superior in tensile strength to a bolt. Our 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.
Your Vehicle Deserves Better.
Xotic Performance was founded with the intention to fill the gap in the market for unwavering high quality auto parts. Too often auto parts stores sell ‘cheap and cheerful’ products that are worth only their weight as scrap. We intend to change that by supplying only the very best performance parts.
Installation Instructions Included with Drawn Diagrams
- Use a thread sealer to lubricate block threads of the head studs (only applies if the cylinder head studs extend into the water jacket).
- Screw studs as tight as can be made by hand (no tool necessary), and install cylinder head.
- Using THE FASTENER ASSEMBLY LUBRICANT included in the package, lubricate the head studs (ensure nuts and washers are lubricated as well).
- Install the lubricated nuts and washer onto the head stud as tight as can be made by hand (no tool necessary).
- Using the torque recommendations in the manual, tighten the cylinder head bolts in 3 equal steps.
After Market Parts that Last.
We at Xotic Performance are experts and enthusiasts in the field of providing the highest quality of spare performance parts for your vehicle—you might even say that we ‘speak the language of performance’. Our unrivaled dedication to supplying only the very best products and our determination to build a strong relationship with each of our clients has allowed us to build a reputation for excellence in the industry that in incomparable to any other automobile parts store.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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