ARP Header Bolt Kits

Application-specific header bolt and stud kits for performance headers

Part #: 100-1108

Overview

The ARP Header Bolt Kits are specially designed fastener solutions crafted to simplify the installation of high-performance headers in a variety of vehicles. Manufactured by ARP, a leader in high-strength fasteners for automotive applications, these kits ensure a secure and reliable connection between your headers and exhaust system. Whether you're building a street machine, a track-ready setup, or an off-road beast, these header bolt kits provide the durability and strength needed to withstand severe conditions and high temperatures.

Designed for enthusiasts who demand quality and longevity, ARP Header Bolt Kits help support the installation process by providing the correct hardware with premium materials. They are ideal for those looking to maximize engine performance, improve exhaust flow, and ensure a tight seal under demanding driving conditions. With ARP's reputation for manufacturing some of the strongest fasteners in the industry, you can trust these kits to deliver consistent performance and peace of mind during installation and operation.

Key Features

ARP Header Bolt Kits are engineered with precision and durability in mind, featuring high-grade materials and thoughtful design to meet the rigorous demands of performance applications. Key features include:

• Manufactured from 170,000 psi tensile strength steel, offering significantly higher strength than stock fasteners, reducing the risk of bolt failure under extreme conditions.
• Includes the exact number of bolts, studs, washers, and nuts required for specific header applications, ensuring a complete and hassle-free installation.
• Premium-quality washers and fasteners with either hex or 12-point heads for versatile installation options and secure torqueing.
• Corrosion-resistant finishes to withstand high heat and harsh environments, extending the service life of the fasteners.
• Designed to fit a wide range of header applications, providing a reliable solution for both stock and aftermarket headers.
• Easy to install with standard hand tools, no special equipment required.
• Backed by ARP's reputation for quality and performance, ensuring peace of mind during installation and use.

Construction & Design

These header bolt kits are constructed from high-strength alloy steel, heat-treated to achieve a tensile strength of 170,000 psi. This exceptional strength ensures that the fasteners can handle the stresses of high-performance engines, including increased cylinder pressures and elevated temperatures. The bolts feature a precise thread pitch of 3/8 in.-16, compatible with most header flange applications.

The inclusion of premium washers and either hex or 12-point heads allows for versatile installation and optimal torque application. The underhead length of 0.750 inches provides sufficient engagement and clamping force, ensuring a secure fit that maintains gasket seal integrity. ARP's meticulous manufacturing process, including CNC machining and quality control, guarantees consistent dimensions and reliable performance across all kits.

Performance & Reliability

While these kits are not performance-enhancing components per se, their high tensile strength and durable construction help prevent bolt failure during demanding driving conditions. They are designed to withstand the thermal expansion and contraction associated with header installation, maintaining a tight seal that preserves exhaust flow and engine efficiency. Using ARP header bolt kits can contribute to a more reliable and long-lasting header installation, supporting your vehicle's overall performance and durability.

Installation & Fitment

Installing the ARP Header Bolt Kits is straightforward and similar to installing standard fasteners. These kits are designed as direct replacements for OEM hardware, ensuring a bolt-on process without modifications. No cutting, drilling, or special tuning is required. Proper torque specifications should be followed to achieve optimal clamping force and gasket sealing. ARP recommends using their thread lubricant for ease of installation and to prevent galling, ensuring maximum strength and longevity of the fasteners.

• Compatible with a wide range of header applications, specific to your vehicle's make and model.
• Designed for easy installation with standard hand tools.
• No additional modifications or adjustments needed.

What's Included

• High-strength header bolts or studs (as specified for your application)
• Premium washers
• Matching nuts (if applicable)
• Installation instructions and torque specifications

Ideal For

• Performance enthusiasts upgrading or replacing header hardware
• Engine builders seeking durable, high-strength fasteners for severe conditions
• DIY mechanics looking for reliable, easy-to-install header hardware
• Anyone aiming to improve header installation security and longevity

Emissions Note

These header bolt kits are designed for performance applications and are not specifically certified for street use or emissions compliance. Always verify compatibility with local regulations before installation.