| Manufacturer | Xotic Performance |
|---|---|
| Brand | Xotic Performance |
| Manufacturer reference | CP878 |
| Is Discontinued By Manufacturer | No |
| Exterior | Black Oxide |
| Manufacturer part number | CP878 |
| Item Weight | 3.95 kg |
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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 Ford 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 finger tight (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 finger tight (no tool necessary).
- Using the torque recommendations in the manual, tighten the cylinder head bolts in 3 equal steps.
Customer Questions & Answers
Customer reviews
Top reviews from other countries
Bill
Great value
Reviewed in the United States on May 19, 2022Verified Purchase
first gen cummins
Good quality at a good value
Reviewed in the United States on January 18, 2022Verified Purchase
Stuart Crawford
Missing parts and Amazon won’t refund me
Reviewed in the United States on November 2, 2021Verified Purchase
