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If you’re diving into the world of Duramax engines, you’ve probably heard about the ARP Duramax 6.6L LBZ/LLY/LML/LMM 12pt Valve Cover Bolt Kit. Trust me, this isn’t just another set of bolts; it’s a game-changer for anyone serious about their build. I’ve been around the block with these engines, and I can tell you that the little details matter—especially when it comes to keeping everything sealed tight.
First off, let’s talk about the valve cover fastener style. These bolts use a solid bolt design, which means you’re not dealing with any cheap clips or flimsy fasteners. The polished finish not only looks sharp under the hood but also helps resist corrosion—something you’ll appreciate after a few seasons of battling the elements.
Now, the material is where ARP really shines. These bolts are made from stainless steel, so you know they’re built to last. I’ve had my fair share of rusted-out fasteners, and trust me, you don’t want to be fighting that battle. Plus, with a 12-point head style, you get a better grip and less chance of stripping when you’re cranking them down.
Let’s get into the nitty-gritty: the thread size is 6mm x 1.0. This is pretty standard for Duramax applications, so if you’re replacing old bolts or doing a full rebuild, you won’t have to worry about compatibility. And yes, washers are included, which is a nice touch. It saves you a trip to the hardware store, and we all know how much time that can waste.
One thing to note: hold-down tabs aren’t included, but honestly, if you’re diving into this level of detail, you probably have your own setup or know what you need. Overall, this kit is a solid investment for anyone looking to upgrade their valve cover setup. It’s not just about looks; it’s about performance and reliability. After all, when you’re pushing your Duramax to the limit, you want to know every part is up to the task.
Other Part Numbers:
ARP Bolts #arp400-7533
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
ARP (Automotive Racing Products) was founded by Gary Holzapfel in 1968 when he noticed his drag-racing friends succumbing to bolt-induced engine failure as a result of poor-quality fasteners. He drew upon his expertise in the aerospace industry to develop a solution, which turned into a successful business nonetheless.
Since its inception, ARP has been engineering and perfecting a wide range of bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, and transmissions. Today, ARP remains the undisputed world leader in automotive fasteners. Racing aficionados everywhere know and recognize the ARP brand and can vouch for its quality.
What Makes ARP Bolts So Special?Located in Ventura, California, all ARP processes from raw wire to finished fasteners are conducted in-house, right here in the USA. The company continually improves its processes with strict quality control guidelines and is dedicated to producing products that are second to none. Simply put, ARP Bolts are better than the competition because of their quality materials and advanced processes.
ARP prides itself on using only top-quality materials that are above the usual “aerospace-grade” quality that other manufacturers settle for. For example, while 8740 Chromoly steel has four different grades, ARP only uses the top two, SDF and CHQ. These grades cost twice as much as the lower commercial and aircraft grades, but deliver “zero defect” quality that you can trust each and every time.
ARP Bolts are built to withstand serious racing, possess greater tensile strengths, and can survive higher stress levels than most aircraft fasteners. ARP is dedicated to creating fasteners that boast ultimate strength and durability to ensure they last race after race. Its product lineup ranges from quality high-performance OEM parts to exotic specialty hardware for IndyCar, NASCAR, NHRA drag racing, Formula 1, and even marine applications.
Equip Your Ride with ARP Bolts at Vivid RacingIf you are looking to change the fasteners on your car, you’ve come to the right place. No other brand beats out ARP Bolts in terms of strength, quality, and race-proven success. Vivid Racing is, therefore, proud to carry an extensive lineup of products from American Racing Products like bolts, fluids, sealants, hand tools, stud kits, piston sleeves, wheel bolts, and more! If you have any questions regarding the parts above, please call our specialized sales team at (480) 966-3040.
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