ARP Header Bolt Kits

Header Bolt & Stud Kits for Automotive Applications

Part #: 400-1204

Overview

The ARP Header Bolt Kits are specially designed fasteners engineered to provide superior strength and durability for your vehicle's header installation. Crafted from high-quality stainless steel, these bolts are an excellent choice for automotive enthusiasts seeking reliable, corrosion-resistant hardware that can withstand the demanding conditions of high-performance engines. Whether you're assembling a new header system or replacing worn-out fasteners, these ARP header bolts ensure a secure and lasting fit.

Ideal for both street and racing applications, ARP Header Bolt Kits help support the integrity of your exhaust system while maintaining optimal engine performance. Their robust construction and precision engineering make them suitable for enthusiasts who demand the best in quality and reliability. With these bolts, you'll get peace of mind knowing your headers are securely fastened, reducing the risk of leaks or loosening over time.

Key Features

ARP Header Bolt Kits are built with a focus on strength, corrosion resistance, and ease of installation. The key features include:

• Material: Made from high-grade stainless steel, providing 15% greater strength than traditional Grade 8 steel, ensuring your fasteners can handle increased stress and heat.
• Design: Compact head design allows for easy access in tight engine bay spaces, making installation and removal more straightforward even in confined areas.
• Finish: Polished, corrosion-resistant surface helps prevent rust and corrosion, extending the lifespan of your fasteners in harsh environments.
• Head Style: Available in 12-point and hex-style heads, offering versatility for different tools and installation preferences.
• Thread Size: 3/8 in.-16, compatible with most header applications requiring this standard thread size.
• Underhead Length: 0.875 in. (22 mm), providing adequate engagement and secure fastening.
• Application: Designed specifically for header and exhaust manifold applications, ensuring a reliable seal and secure fit.
• Heat Resistance: Capable of withstanding high engine bay temperatures without losing strength or integrity.
• Corrosion Resistance: The stainless steel construction offers excellent resistance to rust and corrosion, ideal for vehicles exposed to moisture or harsh conditions.

Construction & Design

These ARP header bolts are manufactured from premium stainless steel, which provides a perfect balance of strength, corrosion resistance, and heat tolerance. The compact head design allows for installation in tight spaces where traditional bolts might be difficult to fit. The polished finish not only enhances the appearance but also adds an extra layer of protection against rust and corrosion, ensuring longevity and consistent performance.

Each bolt features a precise thread pitch of 3/8 in.-16, ensuring compatibility with a wide range of header and exhaust manifold applications. The 12-point and hex-style head options give you flexibility during installation, allowing use with standard sockets or wrenches for ease of assembly and removal. The underhead length of 0.875 inches provides sufficient thread engagement for a secure, leak-free connection, critical for maintaining exhaust system integrity under high-performance conditions.

Performance & Reliability

By choosing ARP Header Bolt Kits, you are investing in hardware that exceeds the strength of conventional steel fasteners. These bolts are designed to withstand the thermal and mechanical stresses encountered in high-performance and daily-driven vehicles alike. Their corrosion-resistant finish ensures they remain reliable over time, even in environments with moisture, salt, or other corrosive elements. Properly securing your headers with these high-quality bolts helps prevent leaks, reduces exhaust noise, and maintains optimal engine performance.

Installation & Fitment

Installing the ARP Header Bolt Kits is straightforward, thanks to their standard thread size and compact head design. They are intended as direct replacements for factory or aftermarket header bolts that use 3/8 in.-16 threads. No special tools or modifications are required, making this a simple upgrade for your vehicle's exhaust system. Always ensure the threads are clean and properly lubricated during installation to achieve maximum torque and secure fitment.

• Easy bolt-on installation with standard hand tools
• No cutting, drilling, or special modifications needed
• Suitable for a wide range of header applications requiring 3/8 in.-16 fasteners

What's Included

• Complete set of ARP Header Bolts (quantity as specified for your application)
• All necessary hardware for installation
• Instruction sheet for proper torque specifications and installation tips

Ideal For

This kit is perfect for automotive enthusiasts, professional mechanics, and racers who demand high-strength, corrosion-resistant fasteners for header and exhaust manifold installations. Whether you're building a high-performance engine, restoring a classic, or performing routine maintenance, these ARP header bolts provide the reliability and peace of mind you need.

Emissions Note

These ARP Header Bolt Kits are designed for use in applications where high-performance and durability are priorities. Please verify your vehicle's emissions requirements and local regulations before installation. ARP fasteners are not certified for emissions compliance unless explicitly stated; always check your local laws regarding aftermarket hardware.