COMP Cams Rocker Arm Shaft Stud Kit

Dodge Gen III HEMI

4589-KIT

Overview:

The COMP Cams Rocker Arm Shaft Stud Kit is engineered specifically for Dodge Gen III HEMI engines to enhance valve train stability and durability. This stud and nut assembly improves clamping load, resulting in a more rigid and stable rocker arm setup that supports higher engine RPMs. Designed with race applications in mind, it protects the aluminum cylinder head threads from wear and damage caused by frequent disassembly and reassembly. This kit also simplifies the installation of shaft mount rocker systems by accurately guiding the rocker arm assembly into position, ensuring precise alignment and reliable performance.

Ideal for enthusiasts and professional builders seeking to maintain or upgrade their valve train components, this kit offers a durable and high-strength solution without requiring modifications to stock rocker arms.

Key Features:

Designed to deliver enhanced valve train reliability and ease of installation, the COMP Cams Rocker Arm Shaft Stud Kit includes:

• Improved clamping load for a more rigid and stable valve train assembly
• Protection of aluminum cylinder head threads from fatigue and damage
• 12-point flange nuts providing ample clearance for maximum rocker arm lift
• Rounded stud nose to prevent cross-threading during nut installation
• Manufactured from high-strength grade 12.9 hardware for superior durability
• No modifications required to stock rocker arms
• Facilitates accurate alignment of shaft mount rocker systems
• Compatible with factory torque specifications for easy installation

Construction & Design:

The rocker arm shaft studs are crafted from premium grade 12.9 hardware, known for its exceptional tensile strength and resistance to thread fatigue. This high-grade material ensures the studs maintain clamping force under extreme conditions, preventing thread pullout in the softer aluminum heads commonly found on Gen III HEMI engines. The 12-point flange nuts are precision-engineered to provide sufficient clearance for rocker arm movement, maximizing valve lift potential without interference. Additionally, the rounded nose design on the stud tops reduces the risk of cross-threading, streamlining assembly and disassembly during maintenance or race preparation.

Installation & Fitment:

Installation of the COMP Cams Rocker Arm Shaft Stud Kit is straightforward and follows factory torque specifications, making it suitable for both professional mechanics and experienced enthusiasts. The kit is designed to fit Dodge Gen III HEMI engines without requiring any modifications to the stock rocker arms. However, it is recommended to verify compatibility with aftermarket shaft mount rocker systems prior to installation. This stud kit not only improves valve train stability but also protects the cylinder head threads during repeated assembly cycles, a common scenario in racing and high-performance applications.

What's Included:

• High-strength rocker arm shaft studs
• 12-point flange nuts
• Installation hardware as required

Ideal For:

This rocker arm shaft stud kit is ideal for Dodge Gen III HEMI engine owners who demand enhanced valve train durability and precision. It is particularly suited for:

• Performance enthusiasts upgrading their valve train components
• Racers and track-day drivers requiring frequent disassembly and reassembly
• Engine builders seeking to protect aluminum cylinder head threads
• Anyone installing shaft mount rocker arm systems on Gen III HEMI engines

COMP Cams is a leading performance valvetrain manufacturer, known for camshafts and supporting components built for everything from mild street upgrades to full race engines. Their product range covers camshafts, lifters, valve springs, rocker arms, and timing/valvetrain parts—key pieces for dialing in powerband, drivability, and RPM capability.

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