If you're diving into some serious engine work, you’ll want to check out the 165-5401 ARP Saturn 1.9L 2-Bolt Main Stud Kit. This isn’t just another set of fasteners; it’s built for those who demand reliability under pressure. I’ve used ARP products for years, and they never disappoint. The main bolt style here is a solid 2-bolt setup, which is perfect for keeping everything snug and secure in your engine block.
Now, let’s talk about the fastener style. This kit features sturdy studs, which I’ve found to be a game changer when it comes to installation and ensuring a tight fit. You’ll get standard hex nuts included, so you won’t be scrambling for parts when it’s time to put everything together. The hex head style makes it easy to work with, even in tight spaces, which is a blessing when you’re elbow-deep in a project.
One thing to note is that this kit doesn’t work with a windage tray, but honestly, for many builds, that’s not a dealbreaker. What really stands out is the fastener yield strength—clocking in at an impressive 200,000 psi. That means these studs are ready to handle some serious stress, which is exactly what you want when you’re pushing your engine to its limits.
Oh, and did I mention that both nuts and washers are included? It’s the little things that matter, right? You won’t have to hunt down extra parts, and you can focus on what really matters: getting your engine running smoothly. Whether you’re working on a Nissan KA24DE or any compatible setup, this kit has got your back. Trust me, when you’re tearing up the track or the trails, you’ll be glad you invested in quality like this.
Other Part Numbers:
ARP Bolts #arp165-5401
⚠ 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.