ARP Main Stud Kit

Ford Coyote 5.0L (2011–2025)

Part #: 156-5803

Overview

The ARP Main Stud Kit for the Ford Coyote 5.0L engine is a high-performance solution designed to enhance the durability and reliability of your engine's main bearing cap assembly. Engineered for enthusiasts who demand precision and strength, this kit ensures that your engine maintains proper alignment and load distribution under demanding conditions. Whether you're building a high-horsepower street machine, a track-ready racer, or a robust daily driver, these main studs provide the stability needed for optimal engine performance.

Constructed with meticulous attention to detail, the ARP Main Stud Kit helps support increased horsepower and torque by maintaining consistent clamping force across the main caps. This results in improved engine integrity, reduced risk of main cap movement, and enhanced overall engine longevity. The kit is an essential upgrade for those looking to push their Coyote 5.0L engine to its limits while maintaining a reliable, secure assembly.

Key Features

ARP's high-performance main stud kits are crafted to meet or exceed military specifications, ensuring superior quality and durability. The main features include:

• Precision Manufacturing: Centerless-ground and thread-rolled to Mil-S-8879 specifications, guaranteeing consistent dimensions and strength.
• Black Oxide Finish: Provides excellent protection against wear, corrosion, and environmental factors, extending the lifespan of the studs.
• Hardened Parallel Washers: Included to ensure uniform load distribution across the main caps, promoting even torque application and reducing the risk of warping or distortion.
• Material Quality: Made from high-grade alloy steel for maximum strength and fatigue resistance, suitable for high-performance applications.
• Enhanced Clamping Force: Designed to provide a more consistent and higher clamp load compared to factory bolts, supporting increased power levels.
• Easy Installation: Compatible with OEM main caps and requires standard tools, making it a straightforward upgrade for experienced mechanics and enthusiasts.

Construction & Design

The ARP Main Stud Kit features a robust design with precision-machined threads and a high-strength alloy steel body. The centerless grinding process ensures that each stud maintains tight tolerances, which is critical for maintaining proper engine geometry and load distribution. The black oxide finish not only enhances corrosion resistance but also provides a sleek, professional appearance. The included hardened parallel washers are engineered to distribute load evenly, preventing main cap movement and ensuring consistent torque application during assembly.

Designed with durability in mind, these studs withstand the stresses of high-performance operation, including elevated RPMs and increased power output. Their construction promotes a secure, stable engine environment, reducing the likelihood of main cap movement or failure over time.

Installation & Fitment

The ARP Main Stud Kit is a bolt-on upgrade that requires basic mechanical skills and standard hand tools. Installation involves removing the existing main bolts, cleaning the main cap and block surfaces, and replacing them with the ARP studs and washers. No cutting, drilling, or complex modifications are necessary. It is recommended to follow ARP's torque specifications and tightening sequence to ensure optimal clamping force and engine integrity. Proper installation will provide a secure, long-lasting upgrade that supports high-performance engine builds.

• Compatible with Ford Coyote 5.0L engines from 2011 to 2025
• Designed for high-performance and racing applications
• Requires standard hand tools for installation
• No additional tuning or modifications are necessary

What's Included

• Set of high-performance main studs
• Hardened parallel washers
• Installation instructions

Ideal For

• Performance enthusiasts building high-horsepower Ford Coyote 5.0L engines
• Track racers seeking increased engine stability
• Engine builders aiming for long-term durability under demanding conditions
• Anyone upgrading their engine for increased power and reliability