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ARP Bolts ARP Carrillo Replacement Rod Bolt Kit 300-6609, 1/4" Thread Size, 5/16" Socket Size - 300-6609

If you’re diving into the world of diesel performance, you’ve probably heard of ARP. They’ve been in the game since 1968, and trust me, they know a thing or two about fasteners. These aren’t just any bolts and studs; they’re engineered for the kind of power that makes your heart race and your truck roar. The ARP Carrillo Replacement ARP3.5 Rod Bolt Kit is a solid choice for anyone looking to beef up their setup.

What sets these fasteners apart? For starters, they’re built to handle extreme loads. You know how it is—when you’re pushing your engine to the limit, you need parts that won’t let you down. These head studs and bolts, along with main studs and driveline components, are designed to take a beating and keep on going. The installation pre-loads are no joke either; they stretch a good amount during installation, which means they’re ready to hold tight when the pressure’s on.

Now, let’s talk specs. You’re looking at a thread size of 1/4", with an overall length (UHL) of 1.400". The thread length is 0.530", and the grip length comes in at 0.225". The head height is 0.325", and if you’re wondering about the socket size, it’s a 5/16 12-point. The collar diameter is 0.433", so you know it’s sturdy.

In a nutshell, if you want to ensure your engine can handle whatever you throw at it, this ARP bolt kit is worth considering. It’s not just about power; it’s about reliability, and ARP has built a reputation for that over the decades. So, whether you’re hitting the track or just want to make sure your daily driver can take on the tough stuff, these rod bolts are a smart investment.

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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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