ARP 5359801 Black Oxide Steel Hex Engine Fastener Kit

Description

Product Overview

The ARP 5359801 Black Oxide Steel Hex Engine Fastener Kit is engineered for performance‑oriented builds, delivering a complete set of twelve fastener groups that cover virtually every critical fastening point on a carbureted engine. Each component is manufactured from heat‑treated 8740 chrome‑moly steel, a material known for its exceptional tensile strength and resistance to fatigue under extreme conditions. The black oxide finish not only provides a corrosion‑resistant barrier but also reduces glare, giving the hardware a professional, race‑ready appearance that complements high‑performance engine bays.

Every fastener in the kit is vacuum‑wrapped and clearly labeled, ensuring that installers can quickly locate the correct part without rummaging through loose hardware. This organization reduces build time and minimizes the risk of using an incorrect fastener, which can lead to catastrophic engine failure. The kit includes traditional hex heads, premium washers, and a range of bolt lengths and diameters, all calibrated to meet ARP’s stringent quality standards. Rated at 170,000 psi, these fasteners exceed the strength of standard Grade 8 hardware, providing a safety margin that is essential for high‑boost applications and aggressive tuning.

Designed with both professional race shops and dedicated hobbyists in mind, the ARP 5359801 kit offers a balance of durability, precision, and ease of use. The components are compatible with a wide variety of engine makes and models, making the kit a versatile addition to any performance‑focused toolbox. Whether you are assembling a brand‑new engine or rebuilding a classic, the kit’s comprehensive coverage and superior material properties ensure that every joint is secured with confidence.

Usage

This fastener kit is ideal for assembling or rebuilding high‑performance carbureted engines, where the integrity of each bolt and stud directly influences power output and reliability. It excels in environments that demand extreme durability, such as drag racing, road‑course competition, and off‑road applications where vibration and thermal cycling are constant challenges. The black oxide coating protects against moisture and chemical exposure, making the hardware suitable for both track days and daily street use.

Installation is straightforward thanks to the clearly labeled vacuum‑wrapped packages. Technicians can follow the included assembly sequence, which aligns with ARP’s recommended torque specifications, ensuring that each fastener is tightened to the optimal load. This precision reduces the likelihood of over‑torquing, which can strip threads, and under‑torquing, which can lead to component loosening under high stress. The kit’s comprehensive nature also means that users do not need to source additional hardware, streamlining the build process and reducing overall project costs.

Beyond engine assembly, the kit can be employed in ancillary systems such as intake manifolds, exhaust headers, and transmission mounts where high‑strength fasteners are required. Its versatility makes it a valuable resource for performance upgrades, custom fabrications, and even restoration projects where authenticity and durability are paramount. The kit’s robust construction ensures that each connection remains secure throughout the life of the vehicle, providing peace of mind for drivers who push their machines to the limit.

Why Choose Us

Choosing the ARP 5359801 kit means selecting a product backed by decades of engineering expertise and a reputation for uncompromising quality. ARP’s rigorous testing protocols include tensile strength testing, fatigue analysis, and corrosion resistance evaluation, guaranteeing that every fastener meets or exceeds industry standards. This commitment to excellence translates into hardware that performs reliably under the most demanding conditions, giving racers and enthusiasts a competitive edge.

Our dedication to customer satisfaction extends beyond the product itself. We provide detailed installation guides, torque charts, and technical support from experienced engineers who can answer specific questions about fitment, performance, and maintenance. This level of service ensures that users can maximize the benefits of the kit without encountering common pitfalls associated with high‑performance hardware.

Furthermore, the ARP 5359801 kit is manufactured in facilities that adhere to ISO 9001 quality management systems, reinforcing our commitment to consistent production standards. Each batch undergoes random sampling and inspection to verify material composition, dimensional accuracy, and surface finish. This meticulous approach reduces variability and ensures that every kit delivered to the customer maintains the same high level of performance and reliability.

Key Features

• Heat‑treated 8740 chrome‑moly steel provides exceptional tensile strength and fatigue resistance for demanding engine applications.
• Black oxide coating offers superior corrosion protection while delivering a sleek, race‑ready appearance.
• Rated at 170,000 psi, delivering a safety margin well above standard Grade 8 hardware for high‑boost environments.
• Comprehensive set includes 12 groups of fasteners, premium washers, and labeled vacuum‑wrapped packaging for quick, error‑free installation.
• Dedicated ARP technical support and detailed installation resources ensure confidence throughout the build process.

FAQ

What makes the 8740 chrome‑moly steel different from standard fastener materials?

8740 chrome‑moly steel is a high‑grade alloy that combines chromium and molybdenum to enhance strength, hardness, and resistance to heat and wear. This composition allows the fasteners to maintain their structural integrity under extreme pressure and temperature fluctuations, which are common in high‑performance engines. Compared to standard carbon steel, 8740 offers a higher tensile strength and better fatigue life, making it ideal for applications where reliability is critical.

Can I use this kit on engines other than carbureted models?

Yes, the ARP 5359801 kit is versatile and compatible with a wide range of engine configurations, including fuel‑injected and forced‑induction setups. The variety of bolt sizes, lengths, and head styles included in the kit covers many common fastening points across different engine families. However, it is always recommended to verify the specific dimensions and torque requirements for your engine model to ensure optimal fit and performance.

How does the black oxide finish affect the fasteners’ performance over time?

The black oxide finish provides a thin, protective layer that resists corrosion, reduces glare, and helps maintain the fastener’s appearance under harsh conditions. While it does not significantly alter the mechanical properties of the steel, it does enhance durability by preventing rust and oxidation, especially in environments with high humidity or exposure to road salts. This finish also contributes to a cleaner, more professional look in the engine bay.

What torque specifications should I follow when installing these fasteners?

ARP supplies detailed torque charts for each fastener size and type included in the kit. It is essential to follow these specifications to achieve the correct clamping force and avoid over‑ or under‑torquing, which can lead to thread damage or component loosening. The torque values are typically expressed in foot‑pounds (ft‑lb) and are based on the fastener’s material grade and diameter. Always use a calibrated torque wrench for accurate results.

Is there a warranty or guarantee for the ARP 5359801 kit?

ARP offers a limited warranty that covers manufacturing defects and material failures under normal use conditions. If a fastener fails due to a defect, ARP will replace the affected component at no cost to the customer. For detailed warranty terms, refer to the documentation included with the kit or contact ARP customer service for assistance.