ARP Stud Bolt 3/8 in Aluminum Cylinder Head – Model 134-4301

Description

Product Overview

The ARP 134-4301 stud bolt is engineered for the most demanding automotive environments, delivering a combination of lightweight aluminum construction and robust Grade A strength. Each bolt features a 3/8 inch thread size (3/8-24) with a flat cylinder head that provides a secure, even load distribution across the engine head surface. The machined exterior finish not only enhances corrosion resistance but also ensures a precise fit that aligns with OEM specifications. Designed for vehicle‑specific applications, this fastener integrates seamlessly into high‑performance engine builds, offering the reliability required for both street and track use. With a weight of just under 5 pounds and compact dimensions of 8.6 x 4.2 x 2.3 inches, the bolt is easy to handle while still providing the structural integrity needed for critical engine components.

Manufactured by ARP, a brand renowned for its commitment to engineering excellence, the 134-4301 model adheres to strict quality control standards. The bolt’s right‑hand thread style and unf threaded type simplify installation, while the Grade A item hardness guarantees long‑term durability under extreme thermal and mechanical stresses. The product’s UPC 672036031022 and GTIN 00672036031022 ensure traceability throughout the supply chain, giving professionals confidence in the authenticity of each component. Whether you are rebuilding a classic engine or upgrading a modern performance platform, this stud bolt provides the precision and strength needed to maintain engine integrity and maximize power output.

Usage

This stud bolt is ideal for a range of automotive applications, from high‑performance racing engines to everyday street vehicles that demand reliability. It excels in scenarios where engine head bolts must withstand high combustion pressures, elevated temperatures, and repeated torque cycles. Installers will find the flat cylinder head design particularly beneficial when torquing to factory specifications, as it reduces the risk of head distortion and promotes even clamping force across the bolt pattern.

Because the bolt is made from aerospace‑grade aluminum, it offers a favorable strength‑to‑weight ratio, making it a preferred choice for lightweight racing builds where every gram counts. The 3/8 inch thread size matches many popular V8 and V6 engine families, ensuring compatibility with a broad spectrum of vehicle makes and models. Whether you are assembling a custom engine, performing a complete head replacement, or conducting routine maintenance, the ARP 134-4301 provides a dependable solution that meets or exceeds OEM performance standards.

Why Choose Us

Choosing ARP means selecting a partner with decades of experience in high‑performance fastener technology. Our commitment to quality begins with material selection; the aluminum alloy used in the 134-4301 is sourced from vetted suppliers and undergoes rigorous testing for tensile strength, fatigue resistance, and corrosion protection. Each bolt is machined to tight tolerances, guaranteeing a perfect fit that minimizes installation time and reduces the likelihood of re‑torquing.

Beyond the product itself, ARP provides comprehensive technical support, including detailed installation manuals, torque specifications, and access to engineering experts who can assist with fitment questions. Our after‑sales service includes a warranty that covers manufacturing defects, giving you peace of mind that your investment is protected. The combination of premium materials, precise engineering, and dedicated customer service makes ARP the trusted choice for professionals who demand nothing less than excellence.

Furthermore, the ARP 134-4301 is backed by a proven track record in motorsports, where reliability under extreme conditions is non‑negotiable. This heritage translates into confidence for everyday users, knowing that the same bolt that powers race‑winning engines is available for your project. By selecting this stud bolt, you benefit from a product that has been validated in the most demanding environments, ensuring that your engine performs at its peak for years to come.

Key Features

• Lightweight aluminum construction reduces overall engine weight while maintaining high strength.
• Flat cylinder head design ensures even torque distribution and minimizes head distortion.
• Grade A hardness provides exceptional durability under high temperature and pressure.
• Vehicle‑specific thread size (3/8‑24) matches a wide range of performance engines for easy fit.
• Comprehensive ARP support and warranty give confidence in long‑term reliability.

FAQ

What engines are compatible with the ARP 134-4301 stud bolt?

The 134-4301 is compatible with most V8 and V6 engines that use a 3/8‑24 thread size, including many American, European, and Japanese performance platforms. Always verify your engine’s bolt pattern and torque specifications before installation.

Can I replace my OEM head bolts with this ARP stud bolt?

Yes. The ARP 134-4301 is designed as a direct replacement for OEM head bolts, offering improved material quality and a more precise fit. It is recommended to follow ARP’s torque guidelines and use a calibrated torque wrench for best results.

Is the aluminum material suitable for high‑temperature applications?

Absolutely. The aluminum alloy used by ARP is specifically formulated to retain strength at elevated temperatures typical of high‑performance engines. It also offers excellent heat dissipation, helping to protect surrounding components.

Do you provide technical assistance for installation?

Yes. ARP’s technical support team is available to answer fitment questions, provide torque specifications, and guide you through the installation process. Documentation and installation videos are also accessible on our website.

What warranty coverage does the ARP 134-4301 offer?

The bolt comes with a limited warranty that covers any manufacturing defects for a period of one year from the date of purchase. This warranty does not cover damage caused by improper installation or misuse.