ARP Header Bolt Kits

Applicable for various header installation applications

Part #: 100-1210

Overview

The ARP Header Bolt Kits are specially designed fastener solutions to simplify and secure the installation of headers in your vehicle. Whether you're upgrading your exhaust system for improved performance or replacing worn-out hardware, these bolt kits provide the strength and reliability needed for demanding conditions. Crafted by ARP, a trusted name in high-performance fasteners, these kits are ideal for automotive enthusiasts, professional mechanics, and racers who demand durability and precision in every component.

Constructed with premium materials and engineered for strength, ARP Header Bolt Kits ensure a secure fit that withstands high temperatures, vibrations, and severe engine conditions. They help maintain proper header alignment and sealing, preventing leaks and ensuring optimal exhaust flow. If you're looking for a dependable solution to support your header installation or upgrade, these kits deliver the quality and performance you need.

Key Features

ARP Header Bolt Kits are built with durability and performance in mind, featuring:

• High-Strength Material: Rated at 170,000 psi, these fasteners are significantly stronger than stock bolts, providing increased resistance to stretching and failure under extreme conditions.
• Premium Construction: Made from high-quality alloy steel, ARP bolts are designed to withstand high temperatures and corrosive environments commonly found in engine bays.
• Complete Kits: Each kit includes the exact number of bolts, studs, washers, and nuts required for your specific application, ensuring a hassle-free installation.
• Variety of Head Styles: Available with hex or 12-point heads, allowing for easy installation with standard tools and accommodating various clearance situations.
• Precision Threading: 3/8 in.-16 thread size ensures a secure and tight fit, reducing the risk of loosening over time.
• Optimal Underhead Length: 1.000 inch length provides the right amount of engagement and clamping force for header applications.
• Corrosion Resistance: Coated or treated to resist rust and corrosion, extending the lifespan of the fasteners in harsh environments.
• Designed for Ease of Use: The kits include all necessary hardware, making installation straightforward and reliable.

Construction & Design

These header bolt kits are engineered with precision and durability at the forefront. The high-strength alloy steel construction ensures they can handle the intense heat and vibrations typical of high-performance engines. The fasteners feature a 3/8 in.-16 thread size, a standard in many header applications, providing compatibility and ease of installation. The inclusion of premium washers and choice of hex or 12-point heads allows for versatile installation options, accommodating various engine bay configurations.

The design emphasizes a secure fit, with ARP's proprietary manufacturing processes ensuring consistent thread quality and strength. The underhead length of 1.000 inch is carefully selected to provide optimal clamping force without risking over-tightening or damage to the header or cylinder head. These kits are built to last, resisting galling and corrosion, and maintaining their integrity even under severe operating conditions.

Performance & Reliability

While these bolt kits are not performance-enhancing components per se, their high-quality construction ensures that your header installation remains secure and leak-free, which is critical for optimal exhaust flow and engine performance. By preventing header leaks and maintaining proper sealing, ARP Header Bolt Kits help support consistent engine operation, improved throttle response, and reliable power delivery over time. Their robust design ensures peace of mind during spirited driving, racing, or daily use.

Installation & Fitment

Designed as a bolt-on solution, ARP Header Bolt Kits are straightforward to install with standard hand tools. The included hardware is compatible with most header and cylinder head configurations that use 3/8 in.-16 threads. No special modifications, cutting, or drilling are required. For best results, torque the fasteners to the manufacturer’s specifications to ensure proper clamping force and sealing. Always verify the specific application fitment before installation.

• Easy to install with common hand tools
• No cutting, drilling, or special tuning required
• Suitable for use in high-temperature engine environments

What's Included

• Header bolts/studs
• Premium washers
• Nuts (hex or 12-point style)
• Complete hardware for your application
• Installation instructions (if provided)

Ideal For

This kit is perfect for automotive enthusiasts, professional mechanics, and racers who need reliable, high-strength fasteners for header installation or replacement. It is suitable for a wide range of vehicles requiring 3/8 in.-16 threaded header hardware, especially in high-performance or severe-duty applications where strength and durability are critical.

Emissions Note

These fasteners are designed for use in standard engine applications. Please verify your vehicle's emissions requirements and local regulations before installation. ARP Header Bolt Kits are intended for off-road or racing use only and may not be legal for street use in all jurisdictions.