ARP High Performance Series Head Stud Kits

Multiple Buick Fitments 2011–2025

Part #: 123-3603

Overview

The ARP Head Stud Kit is designed for automotive enthusiasts and professional builders who demand the highest quality and durability for their engine builds. Specifically engineered for Buick applications within the 2011–2025 model years, this kit ensures a secure and reliable cylinder head fastening solution. Whether you're rebuilding your engine for increased performance, improved reliability, or enhanced tuning capabilities, these head studs provide the strength and consistency needed to support your goals.

Constructed from premium materials and featuring advanced manufacturing techniques, the ARP Head Stud Kit helps support increased horsepower and torque, making it an ideal choice for high-performance street, strip, or off-road applications. Its robust design minimizes head gasket failures and maintains proper cylinder head clamping force under demanding conditions, ensuring your engine runs smoothly and efficiently.

Key Features

The ARP High Performance Series Head Stud Kit offers a range of features that set it apart from standard fasteners, delivering superior strength and reliability:

• Manufactured from chromoly steel with a black oxide finish, providing excellent strength and corrosion resistance.
• Rated at 180,000 psi, making these studs approximately 15 percent stronger than traditional Grade 8 fasteners, ensuring they can withstand high-stress conditions.
• Available with either a reduced wrenching hex head or a 12-point head, facilitating easier installation and re-torqueing without the need for valvetrain removal.
• Includes washers to ensure proper load distribution and secure fastening.
• Designed with precision threads and high-quality manufacturing standards to guarantee consistent performance and fitment.
• Engineered to help maintain proper cylinder head clamping force, reducing the risk of head gasket failure during high-performance use.
• Suitable for a variety of Buick models, providing a versatile solution for different engine configurations.
• Ideal for both street and racing applications where engine integrity and durability are critical.
• Backed by ARP's reputation for quality and performance, ensuring peace of mind during demanding builds.

Construction & Design

The ARP Head Stud Kit is meticulously crafted from high-strength chromoly steel, a material renowned for its exceptional tensile strength and durability. The studs feature a black oxide finish that not only enhances corrosion resistance but also provides a sleek, professional appearance. The precision-machined threads ensure a perfect fit and optimal load transfer, while the included washers help distribute clamping force evenly across the cylinder head.

The design incorporates either a reduced wrenching hex head or a 12-point head, allowing for easier installation and re-torqueing, especially in tight engine bays or when performing multiple head removals. The one-piece construction and advanced manufacturing processes ensure consistent quality and performance, making these studs a reliable choice for high-stress engine environments.

Performance & Reliability

Engineered to support increased power output, the ARP Head Stud Kit provides a significant upgrade over stock fasteners. Its high tensile strength helps maintain proper head gasket sealing under elevated boost, high compression, or aggressive tuning scenarios. This results in improved engine reliability, reduced head gasket failures, and consistent performance over time. Whether you're building a high-horsepower street machine or a race engine, these studs help ensure your cylinder heads stay securely in place, even under extreme conditions.

Installation & Fitment

The ARP Head Stud Kit is designed for straightforward, bolt-on installation. It uses the factory mounting points and threads, requiring no modifications or special tools beyond standard hand tools. The kit includes all necessary washers and hardware for a complete installation. No cutting, drilling, or complex procedures are required, making it suitable for both professional engine builders and experienced DIY enthusiasts.

• Simply remove the existing head bolts and replace them with the ARP studs and washers.
• Torque to the manufacturer’s specifications for optimal clamping force and sealing.
• Reassemble the cylinder head components and enjoy improved strength and reliability.

What's Included

• High-strength chromoly steel head studs
• Washers for load distribution
• Installation instructions

Ideal For

• High-performance street builds
• Engine rebuilds and upgrades
• Forced induction applications (turbo or supercharged)
• Racing and track use
• Enthusiasts seeking maximum durability and strength in their engine fasteners

Emissions Note

This product is designed for off-road or racing use only and may not be legal for use on pollution-controlled vehicles in all jurisdictions. Please check local regulations before installation.