244-5400 ARP main stud kit, and its benefits include eliminating main cap walk and fretting, protecting the engine block threads, and providing exceptional strength for high-performance applications. This is because the kit is made from high-tensile strength 8740 chromoly steel and uses precision-rolled threads that are significantly stronger than stock fasteners. 
Benefits of the ARP 244-5400 Main Stud Kit
Eliminates main cap walk and fretting: This kit helps prevent the main bearing caps from moving around under load, which can cause damage and premature engine wear.
Protects engine block threads: Using a stud kit with high-quality, corrosion-resistant threads protects the original threads in the engine block from being stripped or damaged.
Superior strength: The studs are made from heat-treated 8740 chromoly steel with a tensile strength of 190,000 psi, making them much stronger than stock fasteners.
Stronger threads: The precision J-form threads are rolled after heat-treat, making them 1,000% stronger than other fasteners, notes High Horse Performance.
High-performance applications: The kit is ideal for both street and racing applications, providing the necessary reliability for engines with higher stress and cylinder pressure.
Complete kit: It includes all necessary components, such as high-quality nuts and hardened washers, and in some cases, provisions for mounting windage trays.