Nissan Main Stud Kit - L20 4-Cylinder

The ARP Nissan Main Stud Kit for L20 4-Cylinder engines is designed for builders and mechanics who require dependable fastening in high-stress environments. This kit is particularly beneficial for those rebuilding classic Datsun vehicles, addressing cylinder head lift during peak boost, or preparing engines for competitive racing.

Manufactured from premium alloy steel, ARP studs feature precise threading and shoulder geometry that evenly distributes clamping force across the block's main saddle surfaces. This design helps prevent the stretching and failure that can occur with factory bolts, especially under sustained load conditions typical in forced-induction or high-RPM applications. The kit includes all necessary studs, hardened washers, and nuts for a complete main bearing girdle assembly.

Ideal for L20 engine swaps and restoration projects, this main stud kit is perfect for any build where reliability is paramount. Proper installation requires following ARP's recommended torque sequence and specifications to achieve the intended clamping load, ensuring optimal performance and longevity.