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2004+ Chevrolet Gen III IV LS Cylinder Head Bolt Kit

SKU XP981
Original price $87.91 - Original price $87.91
Original price
$87.91
$87.91 - $87.91
Current price $87.91
Availability:
In stock
Vehicle Fitments

Please note - primary head bolts must all have the same length. There is a Mid-Year split on the head bolts, if you have 2 different size head bolts this kit is NOT for YOU. 

DO NOT PURCHASE until you have verified the primary head bolt length. 

Chevrolet Gen III-IV/LS Series small block (2004 & later) w/ all same length hex bolts
(2004-2014 Chevrolet LS1, LS2, LS3, LS6 (4.8L, 5.3L, 5.7L, 6.0L, 6.2L)

Please note, when installing our product, the final torque for the 11mm bolts are 80 ft-lbs and NOT 85 ft-lbs as incorrectly noted on our manual

Package Contents
  • 30x Head Bolts (M11 x 113.7mm, M8 x 57mm) 
  • 30x Hardened Parallel Washers 0.44" ID, 0.88" OD, 0.120" Thk (Part # W0703)
  • 0.313" ID, 0.675" OD, 0.120" Thickness (Part # W0202)
  • 2x Sockets (10mm and 13mm) 
  • 1 x Fastener Assembly Lubricant 
  • 1 x Instruction Manual
ULTRA STRENGTH

In comparison to standard bolts, our alloy's material characteristics enable much higher tensile strength. For the best fatigue strength, threads are rolled after thermal treatment. A high-quality coating can improve corrosion resistance, reduce friction, and improve overall performance.

EASY INSTALLATION
Installation manual is included with drawn diagrams to ease the installation process. Our head bolts are designed to retain cylinder seal even with today's extremely high-pressure turbo systems. 
PREMIUM QUALITY
Black oxide finish protects from wear and tear. Hardened parallel washers allow for uniform load distribution and accurate torque readings.

⚠️ Prop 65 WARNING

CALIFORNIA WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov.

  • 30-day-hassle-free returns-truck

    Free domestic Shipping

    On all orders. Overnight shipping option available at checkout.

  • Lifetime-Warranty-shield

    lifetime warranty

    If any of our products fail due to a manufacturing defect, we will replace them free of charge.

  • Perfect-fit-guaranteed

    perfect fit, guaranteed

    If the product doesn’t match your engine, we will replace it with no extra charge.

Based on 1176 reviews
89%
(1048)
8%
(98)
2%
(27)
0%
(2)
0%
(1)
Premium Mechanic Gloves

Gloves where good breath well keeps the vibrations and the tool down

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It’s far better than the oem crap. I didn’t want to spend the money on a part that would crack again. This pipe was affordable and met all my requirements.

Amazing affordable upgrade

The turbo piping kit that comes one these engines from the factory are known for blowing out and causing issues.

The Xotic upgrade replaces rubber with high temp silicone, plastic with aluminum. The piping is high quality and goes on easy.

This what Ford should have done in the beginning.

Thank you Xotic for making a product that will stand the test of time. Very happy how easy it installs and how great it looks too!

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Purchase and delivery were very easy and fast. Opening the box, there were no instructions. Included was a sticker that had the website misspelled. You should really fix that. I was able to find one YouTube video on how to install and that was extremely helpful. A one sheet diagram of how it should be assembled should help the buyer a lot. Taking the old cold pipe out was easy and installing the new one took a little over an hour as I was very careful to ensure the clamps were installed correctly and tight. The pipe is very high quality as well as the silicone and aluminum sleaves.

I have not installed the parts yet, but I ordered the milled rocker arm pedestals and the head stud kit. To say that I’m impressed would be an understatement! The packaging is so well done it blows my mind!

Good deal

I was in a hurry and impressed with the free 3 day shipping, Can’t beat that! I’m definitely happy with this set.

Good head studs

They seem to be working good and they were easy to install just wish the packaging was a little better because the assembly line broke inside the box

Excellent product & great customer service

My project began as a simple top end reconditioning for a classic with high mileage. It progressed into a complete rebuild and when I explained this to the sales team, why I had missed out on a discount because I did not order the complete kit at first, they offered me a discount code to help make it happen. The chaser taps are very well made and do just what they are supposed to, clean and straighten the threads without removing any material or 'cutting'. Xotic is not misrepresenting an important tool but making the right tool for exactly the job you came looking for help with here. I have even more confidence that their engine hardware will perform just as well as intended. The support chat people were readily available to help answer questions like "which size taps do I need?" And "are you sure this is for chasing and not for cutting?"

Great product

7.3L Ford Powerstroke Head Stud Kit 1993-2002

Quality is good!

Install went as expected. Studs felt good and strong when torqued to spec.

6.7L & 5.9L 24V Dodge Cummins Head Stud Kit 1998.5-Present

One stripped stud. Awesome customer service

While installing head studs on my 12 valve Cummins I cross threaded one stud. I contacted XOTIC through email and paid the invoice online. Part arrived and my truck is up and running. I was very happy I didn't have to buy a whole set. Thank you. Excellent customer service.

Quick shipping, product well packed

6.7 Cummins Head Studs

Great kit, everything packaged and separated nicely. Install went flawless with no issue.

They look great ! I can’t wait to install them.

Perfect for repair jobs

Like an idiot, I damaged the threads in my vehicle’s crankshaft when I went to remove the harmonic balancer, and I needed a way to repair those really important threads in my engine. Xotic Performance came through by being one of the only online providers of this particular tool. Not only was I able to easily repair the crankshaft threads but I was able to continue with my engine rebuild project. I couldn’t have done it without Xotic Performance.

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Great product!!! Definitely as good if not better than ARP studs!

Good

It’s a great tool and did the job

Thanks

Looks great and fast shiping not install yet but look amazing and good price

Seems to be a quality product…

Appearance, packaging and presentation are great. Minor issue with instructions, but easy enough to figure out if you look up the arp stud install instructions. My directions had 2 number 1 bolts and no number 7 in the torque sequence diagram. They seem to be a good alternative to ARP if you want something a bit more budget friendly. Time will tell.

Commet’s garage

Great people to work with been sponsoring my trucks on TikTok for a little while now 100% love there products