ARP Pro Series Head Stud Kits

Multiple AMC Fitments / 2011–2025

Part #: 114-4002

Overview

The ARP Head Stud Kit is a high-quality fastening solution designed to provide reliable and consistent clamping force for your engine's cylinder heads. Built with performance enthusiasts and professional rebuilders in mind, these studs ensure precise torque readings and secure head gasket sealing under demanding conditions. Whether you're building a performance engine, restoring a classic, or upgrading for increased power, ARP's Pro Series head studs deliver the strength and durability needed for long-lasting performance.

Constructed from premium materials and manufactured with meticulous attention to detail, these head studs are ideal for engines requiring high clamping loads and superior reliability. They are engineered to withstand the stresses of high horsepower applications, making them suitable for street, strip, or off-road use. With ARP's proven track record in racing and high-performance automotive markets, these studs are a trusted choice for enthusiasts seeking to maximize engine integrity and performance.

Key Features

ARP Pro Series Head Stud Kits incorporate advanced manufacturing processes and premium materials to ensure optimal performance and longevity. Key features include:

• Cold-forged construction that ensures molecular integrity and superior strength, providing increased resistance to stretching and fatigue during high-stress operation.
• Heat-treated components that enhance durability and maintain consistent clamping force even under extreme engine temperatures.
• Complete with hardened parallel washers that distribute load evenly across the cylinder head, reducing the risk of warping or gasket failure.
• Available with 12-point nuts for easier installation and removal, especially in tight engine bays or when working with limited access.
• Designed to fit a wide range of AMC engines, with compatibility for multiple models and configurations, making it a versatile upgrade for various builds.
• Precision thread rolling and machining processes ensure accurate thread engagement and consistent torque readings, critical for engine sealing and performance.
• Manufactured to meet or exceed industry standards for quality and reliability, ensuring your engine maintains optimal performance over time.
• Suitable for both stock rebuilds and high-performance modifications, supporting increased horsepower and torque outputs.
• Engineered for ease of installation with detailed instructions and all necessary hardware included, simplifying your assembly process.

Construction & Design

The ARP Pro Series Head Studs are crafted from high-strength alloy steel, which is cold-forged to enhance molecular integrity and overall strength. This manufacturing process results in a more uniform grain structure, providing superior resistance to stretching and fatigue. The studs are then heat-treated to further improve toughness and durability, ensuring they can withstand the thermal and mechanical stresses of high-performance engines.

The design features precise threading and undercut profiles that facilitate accurate torque application and load distribution. The inclusion of hardened parallel washers ensures even load transfer across the cylinder head, reducing the risk of gasket failure and head warping. The 12-point nuts are engineered for easy access and secure tightening, providing a reliable clamping force essential for maintaining engine integrity during demanding driving conditions.

Installation & Fitment

The ARP Head Stud Kit is designed for straightforward installation, typically requiring standard hand tools and basic mechanical skills. These studs are a direct bolt-in replacement for factory fasteners, with no need for modifications or special tuning. It is recommended to follow ARP's torque specifications and tightening sequence to achieve optimal clamping force and gasket sealing. No cutting, drilling, or additional modifications are necessary, making this an ideal upgrade for both novice and experienced mechanics.

• Ensure all components are clean and free of debris before installation.
• Apply ARP Ultra-Torque Assembly Lubricant to the threads and washers for accurate torque readings.
• Follow the specified torque sequence and values provided in the included instructions for proper installation.

What's Included

• Complete set of high-strength cylinder head studs
• Hardened parallel washers
• 12-point nuts
• Installation instructions and torque specifications

Ideal For

• Engine rebuilds and restorations for AMC vehicles
• High-performance street and strip applications
• Enthusiasts seeking reliable head sealing under increased power levels
• Professional engine builders and tuners