ARP Header Bolt Kits

Header Bolt & Stud Kits for Automotive Headers

Part #: 400-1208

Overview

The ARP Header Bolt Kits are specially designed fasteners engineered to provide superior strength and durability for your vehicle's header assembly. 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 installing new headers or replacing worn-out fasteners, these ARP header bolt kits ensure a secure and long-lasting connection.

Ideal for both street and performance applications, these header bolt kits help support optimal exhaust flow and maintain proper sealing of your headers. Their enhanced strength and heat resistance make them suitable for engines subjected to high temperatures and vibrations, ensuring your vehicle maintains peak performance over time. If you're looking to improve the reliability and integrity of your header installation, ARP's header bolt kits are an excellent upgrade.

Key Features

ARP Header Bolt Kits are built with precision and quality in mind, offering several key features that set them apart:

• Manufactured from premium stainless steel, providing 15% greater strength than traditional Grade 8 steel fasteners.
• Corrosion-resistant finish ensures durability and longevity, even in harsh engine bay environments.
• Heat-resistant properties help maintain strength and integrity under high-temperature conditions common in performance engines.
• Compact 12-point and hex-style head designs facilitate installation in tight spaces around headers and exhaust manifolds.
• Underhead length of 0.750 inches (19.0 mm) provides optimal thread engagement and secure fastening.
• Precision threading ensures a proper fit and prevents stripping or loosening over time.
• Designed for easy installation with standard socket tools, reducing installation time and effort.
• Suitable for a wide range of vehicle makes and models requiring 3/8-inch-16 thread size bolts.

Construction & Design

These header bolt kits feature a robust construction utilizing ARP's proprietary stainless steel alloy, which offers exceptional strength and corrosion resistance. The bolts are precision-machined to exact specifications, ensuring a perfect fit and reliable clamping force. The compact head design allows for installation in confined spaces, making them ideal for modern engine bays with limited clearance. The polished finish not only enhances aesthetic appeal but also provides an additional layer of corrosion protection, extending the lifespan of the fasteners.

The 12-point and hex-style head options provide versatility for different installation scenarios, allowing you to choose the best tool access for your application. The high-quality threading and underhead length are engineered to maximize holding power and minimize the risk of loosening due to engine vibrations or thermal cycling.

Performance & Reliability

By upgrading to ARP Header Bolt Kits, you benefit from fasteners that are stronger and more heat-resistant than standard hardware. This ensures your headers remain securely attached, maintaining proper exhaust sealing and preventing leaks that could compromise performance. The increased strength helps support higher horsepower builds and aggressive driving conditions, giving you confidence in your vehicle's reliability. Additionally, the corrosion-resistant finish helps prevent rust and degradation over time, reducing maintenance and replacement needs.

Installation & Fitment

Installing the ARP Header Bolt Kits is straightforward, thanks to their standard 3/8-inch-16 thread size and compatible head styles. These bolts are designed as direct replacements for factory hardware, requiring no modifications or special tools. The compact head design allows for easy access in tight engine compartments, making the installation process quicker and more convenient. No cutting, drilling, or tuning is necessary, and the bolts are suitable for use in a variety of vehicles with header applications that match the specified thread size.

• Simply remove the old fasteners and replace with ARP header bolts for a secure, high-performance connection.
• Ensure proper torque specifications are followed during installation to achieve optimal clamping force and sealing.

What's Included

• Complete set of stainless steel header bolts with 12-point or hex-style heads
• Matching nuts and washers (if included or required for your application)
• Installation instructions and torque specifications

Ideal For

• Performance enthusiasts upgrading or replacing header fasteners
• Street and track vehicles requiring durable, heat-resistant hardware
• Engine builders seeking reliable, corrosion-resistant fasteners for high-temperature environments
• DIY mechanics looking for high-quality, easy-to-install header bolts

Emissions Note

These ARP Header Bolt Kits are designed for use in applications where emissions compliance is not affected. Always verify your vehicle's specific requirements and local regulations before installation.