ARP Rod Bolt Kits

2010–2025 Subaru Forester / Subaru Impreza / Honda Civic / Ford Mustang / Chevrolet Camaro / and more

Part #: 300-6722

Overview

The ARP Rod Bolt Kit (300-6722) is a precision-engineered replacement set designed to enhance the reliability and installation process of connecting rods in high-performance engines. Crafted by ARP, a renowned leader in fastener technology, this kit is ideal for automotive enthusiasts, rebuilders, and racers seeking durable, high-quality hardware for their engine builds. Whether you're performing a rebuild, upgrade, or routine maintenance, these rod bolt extensions provide a reliable guide during piston and rod installation, ensuring proper alignment and preventing damage to crankshaft journals.

Constructed with meticulous attention to detail, the ARP rod bolt extensions help streamline assembly procedures, reduce installation errors, and support the overall integrity of your engine. Their full-radius, long taper design minimizes the risk of nicking or scratching delicate crankshaft components, which can be critical during high-stress engine assembly. These extensions are also useful in holding bearing shells in position in certain applications, contributing to a smoother, more precise assembly process.

Key Features

ARP's 3/8˝ Replacement Rod Bolt Kit (300-6722) offers several technical advantages tailored for performance and durability:

• High-Quality Materials: Made from ARP's proprietary materials, these extensions are designed to withstand the rigors of high-performance engines, resisting fatigue and corrosion.
• Full Radius & Long Taper Design: The full-radius edges and extended taper facilitate easy guiding during piston and rod installation, reducing the chance of damaging crankshaft journals or bearing surfaces.
• Color-Coded for Easy Identification: The hard-anodized finish not only enhances durability but also allows quick identification of different sizes and applications, streamlining assembly and maintenance.
• Two-Piece Set: The kit includes two extensions, providing flexibility and coverage for various engine configurations and rebuild needs.
• Compatibility: Designed to fit a wide range of engines requiring 3/8˝ bolt extensions, making it a versatile choice for many performance builds.
• Enhanced Installation Guidance: Acts as a guide during connecting rod installation, ensuring proper alignment and reducing assembly time.
• Protection of Critical Components: Helps prevent nicking and scratching of crankshaft journals, which is vital for maintaining engine longevity and performance.

Construction & Design

The ARP rod bolt extensions are manufactured with precision-machined surfaces and a durable hard-anodized coating, ensuring longevity and resistance to engine heat and corrosion. The full-radius design is carefully engineered to provide a smooth, guiding surface that minimizes stress concentrations and potential damage during installation. The long taper allows for easy insertion and alignment, reducing assembly effort and increasing accuracy. These extensions are crafted to meet or exceed OEM standards, providing a reliable solution for high-performance and stock engine rebuilds alike.

Installation & Fitment

The ARP Rod Bolt Kit (300-6722) is a straightforward, bolt-on solution that requires no special tools beyond standard hand tools. The extensions are designed to fit seamlessly with existing connecting rod hardware, acting as guides during piston and rod installation. No cutting, drilling, or complex modifications are necessary. Proper use involves inserting the extensions into the connecting rods, aligning the components, and then installing the rod bolts as per your engine's specifications. This process helps ensure correct positioning and reduces the risk of damaging sensitive engine parts.

• Easy to install with basic hand tools
• No special modifications or tuning required
• Designed for use in high-performance and stock engine rebuilds

What's Included

• Two (2) ARP 3/8˝ Replacement Rod Bolt Extensions
• Detailed installation instructions (if provided)

Ideal For

• Engine rebuilders and performance enthusiasts
• High-performance and racing engine builds
• Rebuilding stock engines with enhanced reliability
• Anyone seeking precise, durable connecting rod installation tools