Watch in action

Secure Your Mopar Early Hemi Crankshaft with ARP 2-Bolt Main Studs

For enthusiasts and builders of the iconic Mopar Early Hemi engine, ensuring crankshaft stability is paramount for both performance and longevity. The ARP Mopar Early Hemi Main Stud Kit for 2-bolt mains is an indispensable upgrade, engineered to provide superior clamping force that prevents main cap walk and crankshaft flex under extreme loads. Auto Racing Products delivers a fastening solution that is critical for any high-performance or meticulously restored Early Hemi build.

Advanced Engineering for Engine Integrity

• Premium Chromoly Construction: Each main stud is manufactured from ARP2000 chromoly steel, heat-treated to achieve exceptional tensile strength, far surpassing OEM main bolts. This material choice ensures maximum resistance to stretching and fatigue.
• Black Oxide Finish: A durable black oxide coating provides enhanced corrosion resistance, protecting the studs from the harsh internal environment of the engine block.
• Precision Rolled Threads: Unlike inferior cut threads, ARP's rolled threads are stronger and more consistent, ensuring superior thread engagement and reducing stress concentrations within the block.
• Hex Nuts: The included hex nuts facilitate easy and precise torquing, allowing for accurate assembly and optimal clamping force on your main caps.

Optimized for Mopar Early Hemi 2-Bolt Mains

This kit is specifically designed for Mopar Early Hemi engines with 2-bolt main caps, ensuring a perfect fit and optimal performance. By replacing factory main bolts with ARP main studs, you significantly enhance the rigidity of the engine block's bottom end. This increased stability is crucial for high-RPM operation, forced induction applications, or any scenario where the crankshaft experiences significant stress. Prevent costly failures associated with main cap movement and ensure the long-term health of your legendary Hemi engine.

The Foundation for a Robust Hemi Build

The ARP Mopar Early Hemi Main Stud Kit (MPN: 145-5404) is a fundamental upgrade for anyone serious about their Early Hemi's performance and durability. Trusted by top engine builders worldwide, ARP fasteners are synonymous with quality and reliability. Provide your Mopar Early Hemi with the ultimate foundation for power and endurance. Discover more high-performance engine components at GGCRACING.