Eagle H-Beam Connecting Rods

2012–2016 Scion FR-S / 2012–2020 Subaru BRZ / 2017–2020 Toyota 86

CRS5089S3D

Overview:

The Eagle H-Beam Connecting Rods are precision-engineered performance components designed specifically for the Subaru FA20 and Toyota 4UGSE engines found in the Scion FR-S, Subaru BRZ, and Toyota 86 models. Crafted for enthusiasts and racers seeking enhanced engine durability and reliability under high-stress conditions, these rods provide a robust upgrade over factory components.

Constructed from forged 4340 steel, these connecting rods deliver exceptional strength and fatigue resistance, making them ideal for competition use and high-performance builds. If you are looking to support increased power levels while maintaining engine integrity, these rods offer the durability and precision you need.

Key Features:

These Eagle connecting rods incorporate advanced manufacturing techniques and high-quality materials to ensure optimal performance and longevity:

• Forged from premium 4340 steel using a two-piece forging process for superior strength and toughness.
• H-Beam design provides an excellent balance of rigidity and weight savings, enhancing engine response and durability.
• Fully machined and shot-peened surfaces reduce stress concentrations and improve fatigue life.
• Precision sizing held to exact tolerances ensures consistent fitment and performance.
• Sold as a weight-matched set to maintain engine balance and reduce vibration.
• Equipped with high-quality ARP 2000 bolts for enhanced clamping force and reliability under high RPM and boost conditions.
• Recommended torque specification of 43 ft-lbs using ARP moly lube only to ensure proper bolt stretch and longevity.
• Designed specifically for Subaru FA20 and Toyota 4UGSE engines, ensuring perfect compatibility and fitment.

Construction & Design:

The Eagle H-Beam Connecting Rods are manufactured with a focus on strength and precision. The two-piece forging process enhances the grain structure of the 4340 steel, resulting in rods that resist bending and twisting forces encountered during high-performance operation. The H-Beam configuration offers a superior strength-to-weight ratio compared to traditional I-beam rods, allowing for improved engine response without unnecessary mass.

Each rod undergoes a full machining process to achieve exact dimensions and surface finishes, followed by shot peening to induce beneficial compressive stresses that increase fatigue resistance. The inclusion of ARP 2000 bolts, known for their high tensile strength, further secures the rods under extreme conditions, making them well-suited for boosted or high-RPM applications.

Installation & Fitment:

These connecting rods are designed as direct replacements for the factory rods in the following vehicles:

• 2012–2016 Scion FR-S
• 2012–2020 Subaru BRZ
• 2017–2020 Toyota 86

Installation requires standard engine disassembly and reassembly procedures. The rods are weight-matched and sized to OEM specifications, ensuring a smooth installation process. Proper torqueing to 43 ft-lbs with ARP moly lube is critical for optimal performance and durability. No modifications to the engine block or crankshaft are necessary.

What's Included:

• Set of forged 4340 steel H-Beam connecting rods, weight-matched
• ARP 2000 high-strength connecting rod bolts
• Installation guidelines including torque specifications

Ideal For:

These Eagle H-Beam Connecting Rods are ideal for:

• Performance enthusiasts upgrading their Subaru BRZ, Scion FR-S, or Toyota 86 for increased power and reliability
• Track and competition drivers requiring durable engine internals capable of handling high RPM and boost levels
• Engine builders seeking precision components that maintain OEM fitment and balance
• Anyone looking to enhance engine strength for forced induction or high-output naturally aspirated setups

Eagle Specialty Products manufactures high-strength engine components—most notably connecting rods and crankshafts—intended for performance and racing engines. These rotating-assembly upgrades are commonly used in builds that demand higher strength margins for boost, nitrous, sustained RPM, or competition use.