ARP Balancer Bolt Kits

Multiple Chevrolet Fitments 2011–2025

Part #: 135-2503

Overview

The ARP Balancer Bolt Kit is a high-quality fastening solution designed specifically for Chevrolet engines across various model years from 2011 to 2025. Engine balancers play a crucial role in absorbing torsional vibrations and maintaining smooth engine operation, especially under high-performance conditions. Properly securing the balancer is essential to prevent slippage, reduce wear, and ensure the longevity of your engine components. This kit provides a reliable, durable solution to keep your balancer firmly in place, supporting optimal engine performance and reliability.

Whether you're rebuilding your engine, upgrading for increased power, or performing routine maintenance, the ARP Balancer Bolt Kit offers peace of mind with its robust construction and precise fitment. Designed for enthusiasts who demand excellence, this kit helps support the demanding conditions of spirited driving, towing, or high-performance applications. With ARP's reputation for quality and strength, you can trust that your engine's critical components are secured with the best in the industry.

Key Features

The ARP Balancer Bolt Kit incorporates advanced materials and engineering to deliver superior performance and durability. Key features include:

• Manufactured from 8740 chromoly steel, offering a tensile strength of 200,000 psi for maximum strength and resistance to fatigue under high loads.
• Designed with a 12-point head that accepts a deep socket, reducing the risk of stripping and ensuring a secure fit during installation and removal.
• Includes a washer to distribute load evenly and prevent damage to the balancer or crankshaft snout.
• Precisely machined thread size of 1/2 in.-20, ensuring compatibility with a wide range of Chevrolet engines.
• Underhead length of 1.550 inches, providing the correct engagement depth for secure fastening.
• Engineered to absorb and withstand the incredible energy generated by high-performance engines, helping to maintain proper balancer positioning.
• Designed for easy installation with standard tools, making it suitable for both professional mechanics and DIY enthusiasts.
• Backed by ARP's industry-leading quality standards, ensuring long-lasting performance and reliability.

Construction & Design

The ARP Balancer Bolt Kit features a one-piece construction crafted from high-grade 8740 chromoly steel, renowned for its exceptional strength-to-weight ratio and fatigue resistance. The 12-point head design allows for better torque application and reduces the chance of stripping, especially in tight or hard-to-reach spaces. The inclusion of a washer helps distribute clamping force evenly, preventing localized stress and potential damage to engine components. The precise machining of the threads and underhead length ensures a perfect fit for Chevrolet engines, providing a secure and reliable fastening solution that can withstand the rigors of high-performance driving.

Performance & Reliability

Built to meet or exceed OEM specifications, the ARP Balancer Bolt Kit offers enhanced strength and durability compared to standard factory bolts. Its high tensile strength ensures that the balancer remains securely attached, even under the intense vibrations and forces experienced during spirited driving or engine modifications. This kit helps prevent slippage or loosening that could lead to engine damage, making it an essential upgrade for performance builds or routine maintenance. With ARP's proven track record for quality, you can trust this bolt kit to deliver consistent, reliable performance over the long haul.

Installation & Fitment

The ARP Balancer Bolt Kit is designed for straightforward, bolt-on installation. It uses the factory mounting points and requires no modifications or special tools beyond standard socket sets. The kit is compatible with a wide range of Chevrolet engines from 2011 to 2025, including various V8 and inline configurations. No cutting, drilling, or tuning is necessary, making it an ideal choice for both professional rebuilds and DIY projects. Proper torque specifications should be followed as per ARP instructions to ensure optimal clamping force and engine safety.

What's Included

• One high-strength 8740 chromoly balancer bolt with 12-point head
• One washer for load distribution
• Installation hardware and instructions

Ideal For

• Engine rebuilds and upgrades for Chevrolet vehicles
• High-performance applications requiring secure balancer attachment
• Routine maintenance to prevent balancer slippage
• Enthusiasts seeking reliable, durable fasteners for demanding driving conditions

Emissions Note

This product is designed for use in applications that comply with all applicable emissions regulations. Always verify compatibility with your local laws and regulations before installation.