Mopar Main Stud Kit - 5.7/6.1L Hemi

The ARP Mopar Main Stud Kit for 5.7/6.1L Hemi engines (part number 244-5400) is a high-performance fastener set designed for serious engine builders and automotive enthusiasts. This kit is essential for those looking to enhance the durability and reliability of their Mopar Gen III Hemi engines, especially in high-output applications.

Constructed from premium chromoly material, this stud kit replaces factory main bolts with robust studs and 12-point nuts, providing superior clamping load consistency. The design minimizes friction variables during installation, ensuring a secure fit. The black oxide finish not only resists corrosion but also offers modest wear resistance, making it ideal for damp engine compartments.

Engine builders focusing on street performance, forced induction, or long-duration durability programs will find this kit invaluable. It is specifically designed for 5.7L and 6.1L Hemi engines with 2-bolt main configurations and cross-bolt reinforcement, addressing critical weak points in high-performance builds.