ARP Head Bolt Kits

Multiple Ford Fitments 2011–2025

Part #: 255-3701

Overview

The ARP Head Bolt Kit is a high-performance fastener solution designed for enthusiasts and professionals seeking reliable, durable, and precision-engineered cylinder head bolts. Specifically crafted to fit multiple Ford applications from 2011 to 2025, these head bolts are ideal for rebuilds, performance upgrades, or restoring engine integrity. Whether you're building a high-horsepower street machine, a race engine, or simply maintaining your vehicle's reliability, ARP's Pro Series head bolts deliver exceptional strength and consistency.

Manufactured with advanced materials and heat treatment processes, these head bolts help ensure proper clamping force and accurate torque readings, contributing to optimal engine performance and longevity. Their robust construction makes them suitable for demanding driving conditions, including spirited driving, off-road adventures, and high-performance applications. With ARP's proven reputation for quality and precision, you can trust these bolts to maintain the integrity of your engine's cylinder head assembly.

Key Features

ARP's Pro Series cylinder head bolts are engineered for maximum strength and reliability. Crafted from premium 8740 chromoly steel, these bolts are heat-treated to an impressive 190,000 psi tensile strength, providing the durability needed for high-stress engine environments. The cold-forged manufacturing process ensures molecular integrity, resulting in a fastener that maintains its strength and shape under extreme conditions.

• Constructed from 8740 chromoly steel for superior strength and durability
• Heat-treated to 190,000 psi tensile strength for maximum load capacity
• Cold-forged process enhances molecular integrity and consistency
• Available with hex and 12-point head styles for versatile installation options
• Complete with hardened parallel washers for even load distribution and accurate torque readings
• Designed for multiple Ford engines from 2011 to 2025, including various performance and stock applications
• Precision-machined threads and undercut design ensure reliable torque and clamping force
• Ideal for high-performance builds, rebuilds, and engine restorations
• Engineered to withstand high temperatures and engine vibrations, maintaining integrity over time

Construction & Design

The ARP Head Bolt Kit features a meticulously engineered design that emphasizes strength, precision, and ease of installation. Made from 8740 chromoly steel, these bolts undergo a rigorous heat-treating process to achieve a tensile strength of 190,000 psi, ensuring they can handle the stresses of high-performance engines. The cold-forging process aligns the metal's molecular structure, resulting in a fastener that resists stretching and fatigue.

The bolts are designed with a 12-point head option, allowing for easier access in tight engine bays and providing a more secure fit during installation. All kits include hardened parallel washers, which help distribute load evenly across the cylinder head surface, preventing warping or uneven clamping. The threads are precision-machined for smooth engagement and accurate torque application, ensuring consistent clamping force and sealing integrity.

Installation & Fitment

The ARP Head Bolt Kit is a straightforward, bolt-on upgrade that requires no special modifications. These bolts are designed to fit multiple Ford engines from 2011 to 2025, including various performance and stock configurations. Proper torque sequence and specifications should be followed as per ARP's instructions to ensure optimal clamping force and sealing. No cutting, drilling, or additional modifications are necessary, making this an ideal upgrade for rebuilds or performance enhancements.

• Designed for easy installation with standard hand tools
• Compatible with a wide range of Ford engines from 2011 to 2025
• Requires proper torque sequence and specifications for optimal performance
• No cutting, drilling, or special tuning required

What's Included

• Complete set of high-strength cylinder head bolts
• Hardened parallel washers
• Installation instructions

Ideal For

• Engine rebuilds and restorations
• High-performance Ford engine builds
• Street and race applications requiring reliable head fasteners
• Enthusiasts seeking durable, high-quality fasteners for demanding driving conditions