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ARP Bolts ARP LS1 LS2 SS 12pt Thermostat Housing Bolt Kit, Stainless Steel, Polished - 434-7402

Alright, car enthusiasts, let’s talk about the ARP LS1 LS2 SS 12pt Thermostat Housing Bolt Kit. If you’re diving into a project involving your LS engine, you know how crucial it is to have the right hardware. These bolts are a solid choice for anyone looking to replace their thermostat housing bolts with something that’s not just functional but also looks great under the hood.

  • Fastener Style: Bolt – simple and effective, just how we like it.
  • Underhead Length: 0.787 inches – perfect for getting that snug fit without any fuss.
  • Fastener Head Style: Hex head – makes it easy to torque down without stripping.
  • Fastener Material: Stainless steel – because you don’t want rust ruining your engine bay.
  • Fastener Finish: Polished – adds a bit of shine to your setup, making everything look clean.
  • Quantity: Sold as a kit – no need to hunt for individual bolts; you’ve got everything you need right here.

These bolts are tough enough to handle the heat, and they won’t back down when the engine gets hot. Plus, they fit like a glove on most LS1 and LS2 applications, so you shouldn’t run into any issues with compatibility. If you’re swapping out your thermostat housing or just doing some maintenance, these are a must-have. They clear the space nicely, and you won’t have to worry about them loosening up over time.

So, if you’re looking to give your engine the attention it deserves, grab this kit. It’s all about the details, and these bolts are a step in the right direction for a reliable and good-looking setup.

Other Part Numbers:
ARP Bolts #arp434-7402

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The Story Behind ARP Bolts

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 Racing

If 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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