ARP Head Bolt Kits

Multiple Buick Fitments (223-3703)

Part #: 223-3703

Overview

The ARP Head Bolt Kit for Buick vehicles is a high-performance fastener solution designed for enthusiasts and professionals seeking reliable, durable, and precision-engineered cylinder head bolts. Crafted by ARP, a renowned leader in high-performance fasteners, this kit ensures your engine's cylinder heads are securely fastened under demanding conditions. Whether you're building a performance engine, restoring a classic Buick, or upgrading for increased reliability, these head bolts provide the strength and consistency needed for optimal engine operation.

Constructed with advanced materials and manufacturing processes, the ARP Head Bolt Kit helps support increased horsepower and torque, ensuring your engine maintains proper sealing and compression. Ideal for street, racing, or off-road applications, these bolts are engineered to withstand high stress, heat, and vibration, giving you confidence in your engine's integrity during spirited driving or demanding conditions.

Key Features

Designed with performance and durability in mind, the ARP Head Bolt Kit offers several key features that set it apart:

• Manufactured from 8740 chromoly steel, providing exceptional strength and fatigue resistance for demanding engine builds.
• Cold-forged to ensure molecular integrity, resulting in a high-strength fastener capable of handling extreme loads.
• Heat-treated prior to thread rolling and machining, achieving a tensile strength rated at 190,000 psi, which ensures maximum durability and reliability.
• Available with hex and 12-point head options, allowing for versatile installation and removal in tight engine bays.
• Complete with hardened parallel washers for even load distribution, helping to achieve accurate torque readings and prevent head gasket leaks.
• Precision-machined threads and undercut design to prevent stripping and ensure consistent clamping force.
• Engineered for multiple Buick models, ensuring a perfect fit and optimal performance across various engine configurations.
• Ideal for high-performance builds, rebuilds, or OEM replacements where strength and precision are critical.
• Manufactured by ARP, a trusted name in racing and performance fasteners, ensuring quality and consistency.

Construction & Design

The ARP Head Bolt Kit features a robust design utilizing 8740 chromoly steel, a material known for its excellent strength-to-weight ratio and fatigue resistance. The cold-forging process aligns the grain structure of the steel, significantly enhancing its tensile strength and durability. Heat treatment further elevates the material's properties, allowing these bolts to withstand the intense stresses of high-performance engines.

The bolts are precision-machined with high-quality threads and feature a 12-point or hex head design, facilitating easy installation and removal even in tight spaces. The inclusion of hardened parallel washers ensures even load distribution across the cylinder head surface, reducing the risk of gasket failure and promoting consistent torque application. These design choices contribute to a reliable sealing surface, critical for maintaining compression and preventing leaks under high boost or aggressive driving conditions.

Performance & Reliability

Engine builders and performance enthusiasts rely on ARP fasteners for their proven strength and consistency. The 190,000 psi tensile strength rating of these head bolts means they can handle increased power levels without stretching or failing. Their superior material quality and manufacturing precision help support increased horsepower and torque, making them suitable for high-performance and racing applications.

Installation & Fitment

The ARP Head Bolt Kit is designed as a direct bolt-on replacement for specified Buick models. Installation is straightforward for those familiar with engine assembly, requiring standard torque procedures outlined in ARP's instructions. No special modifications, cutting, or drilling are necessary. Proper torque sequence and specifications should be followed to ensure optimal clamping force and sealing integrity.

• Ensure all threads are clean and lubricated with ARP assembly lube before installation.
• Follow the torque sequence and specifications provided with the kit for proper installation.
• Use a calibrated torque wrench to achieve accurate tightening.

What's Included

• Complete set of high-strength cylinder head bolts
• Hardened parallel washers
• Installation instructions

Ideal For

• High-performance Buick engine builds
• Engine rebuilds and restorations
• Street and racing applications requiring reliable head fasteners
• Enthusiasts seeking OEM-quality replacement parts with enhanced strength

Emissions Note

This product is designed for off-road, racing, or recreational use only and may not be legal for use on public roads in certain jurisdictions. Please verify local regulations before installation.