ARP Ring Compressor

Specialty Kit for Bore Sizes 3.660 Inches

Part #: 899-6600

Overview

The ARP Ring Compressor (899-6600) is a precision-engineered specialty tool designed to facilitate the installation of piston rings during engine rebuilds and assembly. Crafted from high-quality materials and featuring advanced CNC-machined design, this ring compressor kit ensures a secure, accurate fit for pistons with bore diameters of 3.660 inches. Whether you're a professional engine builder or a serious enthusiast, this tool helps streamline your assembly process, reducing the risk of piston damage and ensuring optimal ring seating.

Ideal for performance applications, high-performance rebuilds, or custom engine projects, the ARP Ring Compressor provides a reliable solution for installing tapered piston rings with ease. Its durable construction and thoughtful design make it a valuable addition to any engine shop or garage, supporting precise and efficient assembly work.

Key Features

The ARP Ring Compressor (899-6600) boasts several innovative features that set it apart from conventional tools:

• Manufactured from CNC-machined 6061-T6 billet aluminum, ensuring strength, durability, and lightweight handling.
• True-radius design for each individual bore diameter, providing a superior fit compared to traditional tapered compressors.
• Relieved to accommodate wire O-rings on the bottom, preventing damage during installation and ensuring proper ring seating.
• Type 3 anodizing finish enhances corrosion resistance and longevity, maintaining a professional appearance over time.
• Prominently engraved bore size markings in 3/4 inch high numbers for quick and easy identification during use.
• Precisely CNC-machined to exact specifications, ensuring consistent performance across multiple applications.
• Designed to support tapered piston rings, making it suitable for a wide range of high-performance and stock rebuilds.
• Supports efficient, damage-free installation of piston rings, reducing assembly time and increasing reliability.
• Compatible with various engine rebuild scenarios, including racing, street performance, and restoration projects.

Construction & Design

The ARP Ring Compressor (899-6600) is constructed from high-grade 6061-T6 billet aluminum, CNC-machined to exact tolerances for a perfect fit. Its true-radius design ensures that each bore size is precisely matched, providing a secure and uniform compression of piston rings during installation. The relieved design to accommodate wire O-rings demonstrates thoughtful engineering aimed at protecting delicate components and ensuring proper ring seating.

The Type 3 anodizing process not only provides an attractive finish but also significantly enhances corrosion resistance, making this tool suitable for demanding environments and long-term use. The prominent engraving of bore sizes allows for quick identification, reducing setup time and minimizing errors during assembly. Overall, the design emphasizes durability, precision, and ease of use, making it an essential tool for high-performance engine assembly.

Performance & Benefits

Using the ARP Ring Compressor (899-6600) ensures a smooth, damage-free installation of piston rings, which is critical for optimal engine performance and longevity. Its true-radius design offers a superior fit compared to conventional tapered compressors, helping to achieve better ring seal and compression. The lightweight yet robust aluminum construction makes handling easier, reducing fatigue during repetitive use.

This tool supports efficient engine assembly, saving time and reducing the risk of piston or ring damage. Its precise engineering helps ensure that rings are seated correctly, promoting better compression, improved power output, and enhanced engine reliability. Whether rebuilding a high-performance race engine or restoring a classic, this ring compressor provides the accuracy and durability needed for professional results.

Installation & Fitment

The ARP Ring Compressor (899-6600) is designed for straightforward, bolt-on installation. It fits pistons with a bore diameter of 3.660 inches and is compatible with a variety of engine types that use tapered piston rings. No special tools, cutting, or modifications are required to use this compressor. Simply slide the tool over the piston and rings, compress the rings evenly, and carefully insert the piston into the cylinder bore.

The precision CNC-machined design ensures a snug, secure fit, reducing the risk of ring damage or misalignment during installation. Its lightweight aluminum construction allows for easy handling and maneuvering within tight engine bays or during assembly procedures.

What's Included

• Complete ring compressor kit with CNC-machined billet aluminum components
• Bore size markings engraved for quick identification
• Relief features for wire O-rings
• All necessary hardware for assembly and use

Ideal For

• Engine builders and mechanics performing high-performance rebuilds
• DIY enthusiasts restoring or customizing engines
• Professional shops seeking durable, precise tools for piston installation
• Applications involving tapered piston rings and bore sizes around 3.660 inches

Emissions Note

This product is a specialty tool designed solely for engine assembly and does not impact emissions or legal compliance. It is intended for professional and recreational use in accordance with local regulations.