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🔧 Upgrade your LS engine with studs that hold tight and perform right!
The Xotic Performance CP883 Head Stud Replacement Kit is a direct-fit, ultra-strong upgrade for 2004+ Chevrolet Gen III/IV LS engines (4.8L to 6.2L). Crafted from Grade 7200 alloy steel with 220,000 psi tensile strength and precision centerless grinding, these studs provide superior clamping force and durability. The kit includes all necessary hardware and tools for easy installation, designed to withstand extreme turbocharged conditions while ensuring reliable cylinder head sealing.






| ASIN | B08NYZPQ3K |
| Best Sellers Rank | #600,043 in Automotive ( See Top 100 in Automotive ) #272 in Automotive Replacement Engine Head Bolt Sets |
| Brand | Xotic Performance |
| Color | Black |
| Compatible Groove Diameter | 14 Millimeters |
| Condition Type | 7200 |
| Customer Reviews | 4.3 out of 5 stars 72 Reviews |
| Exterior Finish | Black Oxide |
| Fastener Material | Alloy Steel |
| Finish Types | Black Oxide |
| Hardware Material | Alloy Steel |
| Item Diameter | 14 Millimeters |
| Item Hardness | High (indirectly inferred from tensile strength) |
| Manufacturer | Xotic Performance |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Shear Strength | 132000 psi |
| Model | CP883 |
| Number Of Items | 1 |
| Number of Pieces | 30 |
| Part Number | CP883 |
| Screw Head Style | Broached |
| Set Screw Thread Type | Metric |
| Size Name | One Size |
| Thread Coverage | Partially Threaded |
| Thread Size | M14*237 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| UPC | 663647156143 |
| Unit Count | 1.0 Count |
A**R
Great product
Haven’t installed them yet but looks to be good quality
K**E
Attention to detail.
Looks well made and packaged well. Car is Going on the dyno in a few days so time will tell.I like how they add the tools to do the job. It’s getting all the boost!
P**L
Great value
Love these headsets. They are on my LS3 and work fantastic. No issues even at 25+psi of boost.
W**H
Coating issues
5 months in and rusting
S**N
Great affordable alternative to the big name company.
Great Heads studs for the money , Far superior to the first chinesium heads studs from a few years ago ! The tolerances are much closer and I never felt like the nuts were going to strip out before I got to the torque spec like the old ones .
J**K
Listing is not accurate
Inaccurate listing these DO NOT fit gen 3 ls motors 04+ as listed…. These are only for gen 4 and guess what once you open them you can’t return them. You need the other listing they have…. Not happy with this purchase. Quality is good but that’s about it…. Not my first purchase with them but being that they can’t be returned it will be my last….
V**E
I’d have no problem buying their products.
They seem like they are well made. Worked perfect and easy to install on my lq9.
N**R
High Quality
Very impressed with this bolt kit! High quality! Will buy again!
P**O
Excellent Product..
Very excellent product made over 900hp to the tire 17lbs. If you install them properly follow instructions , you're going to do have success
J**E
Stud failed
Head stud broke in block during second torque sequence
Trustpilot
1 week ago
3 weeks ago