BoostLine HN5658-866 Forged 4340 Connecting Rods for Universal Fitment

Vehicle Fitment

• Universal Fitment

Features

• Forged 4340 Chromoly steel construction for maximum strength and durability
• Precision-machined surfaces ensure exact tolerances and optimal balance
• Lightweight design reduces reciprocating mass for improved engine response
• Patented three-pocket I-beam design enhances strength while minimizing weight
• Includes ARP 2000 high-strength rod bolts for superior clamping
• Heat-treated and shot-peened for superior fatigue resistance
• Protective coating prevents corrosion and increases component lifespan
• Capable of supporting high-RPM and high-performance engine applications

Specifications

• Rod Length (Center-to-Center): 5.658 inches
• Small End Bore: 0.866 inches
• Weight: Approximately 615 g per rod
• Material: Forged 4340 Chromoly Steel
• Fasteners: ARP 2000 Rod Bolts included
• Design: Three-Pocket I-Beam
• Application: Performance and racing engines
• Inspection: Each rod measured for critical dimensions

Included Components

• 4x BoostLine HN5658-866 Connecting Rods
• 4x ARP 2000 Rod Bolts
• 1x Inspection Card with critical measurements

Product Description

The BoostLine HN5658-866 Connecting Rod Kit is engineered for high-performance and racing engines, providing superior strength and reliability. Forged from 4340 Chromoly steel and heat-treated, these rods are designed to handle extreme stress and high-RPM conditions.

With a patented three-pocket I-beam design and precision machining, these rods reduce weight while maintaining structural integrity, improving engine efficiency and response. Each rod is balanced for consistent performance throughout the set.

This universal-fit kit comes with ARP 2000 rod bolts and an inspection card to verify critical dimensions. Ideal for custom engine builds, turbocharged setups, and high-output performance applications, the HN5658-866 rods deliver durability and performance where it matters most.