ARP Balancer Bolt Kits

Multiple Chevrolet Fitments / 235-2502

Part #: 235-2502

Overview

The ARP Balancer Bolt Kit is a high-quality, durable solution designed to secure your harmonic damper or balancer firmly in place on Chevrolet engines. When your engine's crankshaft flexes under load, the harmonic damper absorbs significant energy to reduce vibrations and protect vital components. Ensuring the balancer remains properly locked is essential for optimal engine performance, longevity, and smooth operation. This kit is ideal for performance enthusiasts, rebuilders, and anyone looking to maintain or upgrade their engine's integrity.

Constructed with precision and engineered for strength, ARP's balancer bolt kits provide a reliable, long-lasting fastening solution that withstands the rigors of high-performance applications. Whether you're restoring a classic Chevrolet or building a high-horsepower street or race engine, these bolts help ensure your harmonic damper stays securely in position, preventing potential damage caused by loosening or slipping.

Key Features

The ARP Balancer Bolt Kit offers several technical advantages that make it a top choice for engine builders and enthusiasts:

• Manufactured from 8740 chromoly steel, known for its exceptional strength and toughness, ensuring the fasteners can handle high-stress conditions without failure.
• Finished in a durable black oxide coating that provides corrosion resistance and a sleek appearance, suitable for both performance and show engines.
• Designed with a 12-point head that accepts a deep socket, allowing for easier installation and removal in tight engine bays while reducing the risk of stripping the head during torque procedures.
• Thread size of 1/2 in.-20, compatible with a wide range of Chevrolet models requiring harmonic damper fasteners.
• Underhead length of 1.550 inches, providing the proper engagement and clamping force needed for secure installation.
• Includes a washer to distribute load evenly and prevent damage to the damper or crankshaft snout, ensuring a reliable, secure fit.
• Engineered to withstand a fastener tensile strength of 200,000 psi, offering superior holding power even under high RPM and power levels.

Construction & Design

The ARP balancer bolt kit is meticulously crafted from high-grade 8740 chromoly steel, a material renowned for its strength-to-weight ratio and durability. The bolt's one-piece construction ensures maximum integrity and resistance to fatigue. The black oxide finish not only enhances corrosion resistance but also provides a professional, finished look suitable for performance builds. The 12-point head design allows for better access in confined spaces, making installation and removal more straightforward, especially in tight engine compartments. The included washer helps distribute clamping force evenly, reducing stress concentrations and potential damage to the damper or crankshaft.

Performance & Reliability

Designed to handle the demanding conditions of high-performance engines, these bolts provide a secure, reliable fastening solution that helps prevent the common issues of bolt loosening or failure. The high tensile strength of 200,000 psi ensures that the fasteners can support the energy absorption needs of the harmonic damper during engine operation. Properly torqued, these bolts help maintain engine balance, reduce vibrations, and support consistent performance across a wide range of driving scenarios, from daily driving to spirited street and racing applications.

Installation & Fitment

The ARP Balancer Bolt Kit is a straightforward, bolt-on upgrade that requires no special tools beyond standard socket sets. The bolts are designed to thread directly into the factory or aftermarket crankshaft snout, replacing the original fasteners. No cutting, drilling, or complex modifications are necessary. For optimal results, follow ARP's recommended torque specifications and procedures, which typically involve tightening in stages to ensure proper clamping force. Always verify fitment with your specific Chevrolet model and engine configuration before installation.

• Easy, direct bolt-on installation
• No cutting or drilling required
• Compatible with a wide range of Chevrolet engines requiring harmonic damper fasteners

What's Included

• One high-strength 8740 chromoly balancer bolt
• Included washer for even load distribution

Ideal For

• Performance engine builds and rebuilds
• Restoration projects requiring OEM or upgraded fasteners
• High-RPM or high-horsepower applications where secure damper attachment is critical
• Enthusiasts seeking reliable, long-lasting fasteners for daily or race use

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.