ARP 202-5406 Main Stud Kit for Nissan L24/L26/L28 6-Cylinder Engines

Vehicle Fitment

• 1970-1983 Nissan/Datsun L24, L26, L28 6-Cylinder Engines

Features

• Manufactured from 8740 chrome moly steel
• Heat-treated to 200,000 psi tensile strength
• Precision J-form threads rolled after heat treatment
• Black oxide finish for corrosion resistance
• Includes 12-point nuts and hardened parallel-ground washers
• Designed to eliminate main cap walk and fretting
• Protects threads in the engine block
• Ideal for high-performance and racing applications

Specifications

• Material: 8740 chrome moly steel
• Heat Treatment: 200,000 psi tensile strength
• Thread Design: Precision J-form threads
• Finish: Black oxide
• Socket Size: 12mm 12-point
• Includes: 12-point nuts and hardened parallel-ground washers
• Main Cap Type: 2-Bolt

Included Components

• 1x ARP Main Studs
• 1x 12-Point Nuts
• 1x Hardened Parallel-Ground Washers

Product Description

The ARP 202-5406 Main Stud Kit is engineered for the 1970-1983 Nissan/Datsun L24, L26, and L28 6-cylinder engines. This kit is essential for those seeking to enhance engine reliability and performance, particularly in high-stress environments such as racing or performance builds.

Constructed from 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi, these studs offer exceptional strength and durability. The precision J-form threads, rolled after heat treatment, ensure superior thread integrity and resistance to stretching under high loads. The kit includes 12-point nuts and hardened parallel-ground washers, providing a secure and consistent fastening solution.

By replacing the factory bolts with ARP studs, you eliminate issues like main cap walk and thread fretting, which can lead to engine failure. This upgrade is a critical step in building a robust and reliable engine capable of handling increased power and torque.