ARP Hex Timing Cover & Water Pump Bolt Kit

Buick 350 Engines (1986–1998)

Part #: 420-3202

Overview

The ARP Hex Timing Cover & Water Pump Bolt Kit is a high-performance fastener solution designed specifically for Buick 350 CID engines. Whether you're rebuilding, restoring, or upgrading your engine, these bolts provide a reliable and durable fastening option that exceeds OEM standards. Crafted with strength and longevity in mind, this kit is ideal for automotive enthusiasts and professional mechanics who demand the best for their engine builds.

Engineered to withstand the rigors of high-performance applications, these bolts help ensure your timing cover and water pump are securely mounted, preventing leaks and maintaining optimal engine operation. The ARP kit offers a significant upgrade over standard hardware, providing peace of mind during demanding driving conditions, including spirited street driving, track days, or off-road adventures.

Key Features

Designed with precision and durability, the ARP Hex Timing Cover & Water Pump Bolt Kit offers several key advantages:

• Manufactured from high-strength materials with a nominal tensile strength of 180,000 psi, these bolts are substantially stronger than traditional grade 8 hardware, providing enhanced reliability and resistance to stretching or failure under stress.
• Available in two finishes—BlackOxide and stainless steel—allowing you to choose the optimal corrosion resistance and aesthetic for your engine bay. The BlackOxide hex or 12-point heads provide a sleek, corrosion-resistant surface, while the stainless steel options offer rust-free performance for long-term durability.
• Precision-machined threads and heads ensure a perfect fit and easy installation, reducing the risk of stripping or cross-threading during assembly.
• Designed specifically for Buick 350 engines from 1986 to 1998, ensuring compatibility with factory and aftermarket components.
• Ideal for high-performance builds, restorations, or routine maintenance where superior fastener strength and corrosion resistance are desired.
• ARP's proprietary manufacturing process guarantees consistent quality and strength across every bolt, making these fasteners a trusted choice among engine builders and enthusiasts worldwide.

Construction & Design

The ARP Hex Timing Cover & Water Pump Bolt Kit features high-quality alloy steel construction, meticulously machined to exact specifications. The bolts are heat-treated to achieve the specified 180,000 psi tensile strength, providing exceptional durability and resistance to fatigue. The hex and 12-point heads are designed for easy tool engagement, allowing for secure tightening and removal without slipping or stripping.

The black oxide finish not only enhances corrosion resistance but also provides a professional, clean appearance in the engine bay. Alternatively, the stainless steel version offers superior rust resistance, making it suitable for vehicles exposed to harsh environments or moisture.

Performance & Reliability

While these bolts are not designed to increase horsepower directly, their superior strength and corrosion resistance contribute to the overall reliability and longevity of your engine assembly. By ensuring that critical components like the timing cover and water pump are securely fastened, you help maintain proper engine timing and cooling system integrity, which are essential for optimal performance and engine health.

Installation & Fitment

The ARP Hex Timing Cover & Water Pump Bolt Kit is a bolt-on upgrade that requires no special modifications or tuning. The bolts are designed to fit factory and aftermarket Buick 350 engines from 1986 through 1998. Proper torque specifications should be followed during installation to ensure optimal clamping force and prevent damage. Always use a calibrated torque wrench and follow ARP's recommended tightening sequence for best results.

No cutting, drilling, or additional modifications are necessary, making this kit a straightforward upgrade for your engine rebuild or maintenance project.

What's Included

• High-strength ARP bolts for timing cover and water pump (quantity as specified for your application)
• Complete hardware set with nuts, washers, and all necessary components for installation
• Detailed installation instructions

Ideal For

• Engine rebuilds and restorations for Buick 350 CID engines
• High-performance street and racing applications
• Enthusiasts seeking reliable, corrosion-resistant fasteners for long-term engine durability
• Professional mechanics and DIYers aiming for quality and peace of mind during assembly

Emissions Note

This product is designed for use in off-road, racing, or recreational applications and may not be legal for use on public roads in all jurisdictions. Please check local regulations before installation.