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ARP 400-2402 Cylinder Head Stud Kit

Manufacturer

ARP

<h3>The Gold Standard in Performance Fasteners</h3> <p>When racing enthusiast Gary Holzapfel recognized that fastener failure was causing many engine breakdowns in 1968, he founded Automotive Racing Products (ARP) to solve a critical problem in motorsports. Drawing on his aerospace fastener manufacturing experience, Holzapfel created a company that would revolutionize the performance fastener industry. Today, ARP stands as the world's premier manufacturer of high-strength bolts, studs, nuts, and specialized hardware for racing and high-performance applications.</p> <p>ARP controls all aspects of the manufacturing process in-house, with all operations closely monitored, enabling the company to maintain its reputation for zero-defect quality. Every fastener undergoes forging, heat treatment, thread rolling, and precision finishing at ARP's Southern California facilities, which span over 115,000 square feet. This vertically integrated approach ensures that each component meets exacting standards for strength, fatigue resistance, and reliability under extreme conditions.</p> <h3>Engineered for Championship Performance</h3> <p>ARP's customer roster reads like a who's who of professional motorsports. The product line ranges from quality high-performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications. The company's fasteners have secured victories in virtually every major racing championship worldwide, from Top Fuel dragsters to Formula One cars, proving their worth under the most demanding conditions imaginable.</p> <p>The brand's <a href="/48-arp-engine-cylinder-head-bolt-set-10306">engine cylinder head bolt sets</a> represent the cornerstone of ARP's catalog, offering engine builders the clamping force and reliability needed to prevent head gasket failure in high-boost and high-compression applications. These precision-engineered fasteners utilize proprietary materials and heat treatments that deliver up to ten times the fatigue strength of conventional bolts, making them essential for any serious performance build.</p> <p>For engine internals, ARP manufactures <a href="/48-arp-engine-connecting-rod-5276">connecting rods</a> designed to withstand extreme cylinder pressures and high RPM loads. Each rod is manufactured to aerospace standards with tight tolerances and superior material properties. Whether you're building a street performance engine or a full competition powerplant, ARP connecting rods provide the strength and consistency that professional engine builders demand.</p> <h3>Complete Fastener Solutions</h3> <p>Beyond engine components, ARP's product range extends throughout the entire vehicle. The company's <a href="/48-arp-wheel-lug-stud-7680">wheel lug studs</a> offer critical safety and performance benefits for racing and high-performance street applications, providing greater clamping force and durability than factory studs. ARP's product line contains thousands of part numbers and has expanded to include virtually every fastener found in an engine and driveline.</p> <p>Individual <a href="/48-arp-engine-cylinder-head-bolt-5308">engine cylinder head bolts</a> are also available for custom applications or specific replacement needs, manufactured to the same exacting standards as complete sets. This flexibility allows builders to source exactly what they need for specialized builds or repairs without compromising on quality.</p> <p>What sets ARP apart is not just the breadth of their catalog, but their willingness to develop custom solutions for unique applications. The company maintains complete R&D capabilities, including metallurgical research, product design, prototype machining, and extensive laboratory testing. This engineering expertise ensures that whether you're installing a simple head stud kit or building a record-setting race engine, ARP fasteners deliver the reliability and performance that professionals trust.</p>

Part Number

400-2402
07/12/2036 2:29 AM
Sale Price

$21.18

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

ARP cylinder head studs provide superior clamping force and reliability for high-performance engine builds. Engineered to replace factory head bolts, these studs allow for more precise and consistent torque loading, which helps maintain optimal head gasket sealing even under extreme cylinder pressures and temperatures.

Key Features:

  • Manufactured from premium 8740 chrome moly steel for exceptional strength and durability
  • Rated at 190,000 psi tensile strength, far exceeding OEM fastener specifications
  • Parallel ground threads ensure accurate and repeatable torque readings
  • Black oxide finish provides corrosion resistance and professional appearance
  • Includes premium-grade hex nuts and hardened parallel-ground washers
  • Thread engagement allows for multiple installation cycles without degradation

ARP head studs are the preferred choice for racing applications, forced induction setups, and any build where engine reliability is critical. The stud design eliminates the torsional stress created when torquing head bolts, resulting in more uniform clamping loads across the head gasket surface.

Products specifications

Fastener Finish

Polished

Fastener Material

Stainless steel

Fastener Nut Style

Standard hex

Fastener Style

Stud

Material

Pro Series

Notes

Ideal for 1.000 in. spacer.

Nuts Included

Yes

OAL

2.7

Quantity

Sold as a set of 4.

Size

5/16

Stud Length (in)

2.700 in.

Thread Size

5/16 in.

Washer Included

Yes

Good

Everything went great.

Thanks!

Fast, accurate, and no hassle

Good selection and service. It was an easy process to find the product I was looking to purchase

It was great fast and easy!!!

Great

Just as promised. Part could have better (more readable) instructions.

Order came in faster than I thought and packaged well.

good price, prompt delivery. no complaints.

Overall good experience. First time ordering from you guys so im eager to see how it goes.

Awesome company. Great prices... friendly staff and fast shipping. Will use as much as possible for auto parts needs.

Definitely good prices and they shipped my order within a day. So far, they've had really good customer service.

Great prices I found exactly what I needed without paying that much, I found the product lower than thee competitors. They send me emails and keep me posted on my product and give me a tracking number so I can locate where its at. Im excited to recieve my mishimoto oil catch can.

Awesome prices on hard to find auto parts...quick shipping..A+!

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