ARP Valve Cover Bolt Kit

2010–2025 Subaru Forester / Impreza / WRX / STI 1/4 in.-20 Thread

Part #: 400-7601

Overview

The ARP Valve Cover Bolt Kit is a high-quality hardware upgrade designed to enhance the durability and reliability of your vehicle's valve cover assembly. Crafted by ARP, a trusted name in performance fasteners, this kit provides a secure and precise fit for your engine's valve cover, helping to maintain proper gasket seal and prevent oil leaks. Whether you're building a performance engine, restoring a stock setup, or simply replacing worn hardware, this bolt kit offers a robust solution for enthusiasts who demand excellence.

Ideal for street-driven vehicles, spirited driving, or track use, the ARP Valve Cover Bolt Kit ensures your engine remains sealed under demanding conditions. The polished finish not only adds a sleek look to your engine bay but also resists corrosion, maintaining its appearance over time. With ARP's reputation for precision manufacturing, you can trust these fasteners to provide consistent performance and a secure hold.

Key Features

The ARP Valve Cover Bolt Kit is engineered with performance and durability in mind. Here are some of its key features:

• Manufactured from high-grade stainless steel, providing excellent strength and corrosion resistance.
• Polished finish enhances appearance and offers additional protection against rust and corrosion.
• Includes all necessary studs, nuts, and washers for a complete installation.
• Designed with a 1/4 in.-20 thread size and a thread length of 1.170 inches, ensuring compatibility with a wide range of Subaru engines.
• Standard hex nuts allow for easy installation and removal with common tools.
• Helps minimize valve cover deflection, reducing the risk of oil seepage and gasket failure.
• Assists in maintaining proper gasket compression, especially during high-performance or spirited driving conditions.
• Precision-machined components ensure a perfect fit and consistent torque application.
• Part of ARP's extensive line of high-performance fasteners, trusted by racers and enthusiasts worldwide.

Construction & Design

The ARP Valve Cover Bolt Kit features meticulously engineered components made from stainless steel, ensuring strength and longevity. The polished finish not only provides an attractive appearance but also offers resistance to corrosion and oxidation. The studs are designed with a precise thread pitch and length to fit most Subaru engines, providing a secure and reliable fastening solution. The standard hex nuts facilitate straightforward installation and removal, while the included washers help distribute load evenly and prevent damage to the valve cover surface.

Designed with durability in mind, these fasteners are TIG-welded and machined to exact specifications, ensuring consistent quality and performance. The robust construction helps prevent valve cover warping or deflection, which can occur under high engine loads or thermal cycling, thereby supporting long-term engine integrity.

Installation & Fitment

The ARP Valve Cover Bolt Kit is designed for a straightforward, bolt-on installation. It replaces the factory hardware with high-strength stainless steel studs, nuts, and washers, all of which are compatible with most Subaru engines from 2010 to 2025. No cutting, drilling, or special modifications are required. Simply remove the existing bolts, clean the mounting surfaces, and install the ARP fasteners using standard hand tools. Proper torque specifications should be followed to ensure optimal sealing and fastening strength.

• Easy, bolt-on installation with common hand tools
• No cutting or drilling required
• Compatible with OEM and aftermarket valve covers

What's Included

• High-strength stainless steel studs
• Matching nuts
• Washers for even load distribution
• Installation instructions

Ideal For

This fastener kit is perfect for Subaru enthusiasts, performance builders, and restorers seeking a reliable, corrosion-resistant hardware upgrade. It is especially beneficial for engines subjected to high thermal and mechanical stresses, ensuring your valve cover remains securely fastened and sealed under all conditions.