Watch in action

Ultimate Reliability for Subaru EJ Engines

When building a high-performance Subaru EJ20 or EJ25 engine, the integrity of your bottom end is paramount. The Auto Racing Products (ARP) Pro Series Main Cap Bolt Kit is engineered to provide the superior clamping force required for high-horsepower applications. These bolts are manufactured from premium 8740 chromoly steel, heat-treated to ensure exceptional tensile strength and durability under extreme stress.

Key Features and Benefits

• Pro Series Strength: Rated far beyond OEM specifications for reliable main bearing support.
• 12-Point Head Design: Allows for easier installation and higher torque accuracy during engine assembly.
• Black Oxide Finish: Provides excellent corrosion resistance and a clean, professional aesthetic.
• Precision Engineering: Designed specifically for 2-bolt main Subaru 4-cylinder configurations.

Each kit includes a complete set of high-strength bolts and washers, ensuring your engine block remains stable during high-RPM operation and heavy boost loads. Whether you are performing a street build or a dedicated track engine, these fasteners prevent main cap walk and ensure consistent bearing clearances. Trust your engine build to the industry leader in fastener technology. Upgrade your engine today with this essential component from GGCRACING.