ARP Main Stud Kit for Nissan VQ35DE / VQ35HR / VQ37VHR 4-Bolt (202-5801)

The ARP 202-5801 Main Stud Kit locks down the bottom end of Nissan VQ35DE, VQ35HR, and VQ37VHR engines equipped with 4-bolt main caps. Replacing stock bolts with high-tensile studs eliminates main cap flex and fretting during elevated RPM operation or high-boost forced induction.

Manufactured from 8740 chromoly steel and precision thread rolled after heat treatment, these studs safeguard aluminum block threads against stripping and galling.

Key Features & Benefits:

• Bottom-End Reinforcement: Keeps main caps firmly aligned to extend crank bearing life under high load.
• Thread Protection: Distributes tension evenly throughout the block to prevent thread fatigue in aluminum cases.
• Precision Manufacturing: Centerless ground and thread-rolled post heat-treat for superior fatigue strength.

Technical Specifications:

• Material / Build: 8740 Chromoly Steel / Black Oxide
• Warranty: Official ARP Limited Warranty
• Brand: ARP