ARP Main Stud Kit for BMW S58 Engine

Build your BMW S58 engine for maximum reliability and performance with the ARP Main Stud Kit. Factory main bolts can become a weak point in high-horsepower applications, making an upgraded main stud kit essential for performance builds, turbo upgrades, and demanding track use.

ARP is the industry leader in high-performance fasteners, manufacturing premium hardware trusted by professional engine builders worldwide. Every ARP kit includes precision parallel-ground washers and aerospace-quality nuts for superior clamping force and durability. At Miami Engines, ARP hardware is used in our high-performance engine builds because we trust it to perform under extreme conditions.

The ARP Main Stud Kit helps prevent main cap walk, improves bottom-end stability, and protects the engine block threads. Each stud is manufactured from heat-treated 8740 chromoly steel with precision rolled threads for exceptional strength and long-term reliability.

Features

• Fits BMW S58 engines
• Increases bottom-end strength and reliability
• Helps prevent main cap walk under high horsepower
• Heat-treated 8740 chromoly steel construction
• Precision rolled threads for increased durability
• Includes ARP aerospace-quality nuts and hardened parallel-ground washers
• Ideal for street, track, and high-boost performance builds

Perfect for: Engine rebuilds, forged engine builds, turbo upgrades, and high-performance BMW S58 applications.