Overview 

The BoostLine Connecting Rods for Chevrolet LS engines are designed for extreme performance and durability in high-horsepower builds. With a 6.125-inch center-to-center length, they are a direct fit for Gen III, IV, and LT-based LS engines. These rods are forged from premium 4340 steel and undergo heat treatment and shot peening to deliver maximum fatigue resistance. Featuring BoostLine’s patented three-pocket I-beam design, they offer up to 60% more bending strength and 20% lower tensile stress than traditional H-beam rods, making them ideal for forced induction or nitrous applications. Each rod includes a 0.927-inch wrist pin bore with full-floating Ampco bronze bushings to reduce friction and wear. High-strength ARP 2000 7/16" cap screw bolts are standard, with optional upgrades to ARP 625+ for extreme builds. Compatible with 2.100" crank journals and 2.225" big-end bores, each rod is CMM-inspected at 26 points for quality assurance and comes with an individual inspection report. Precision-machined and shot-peened in Mentor, Ohio, these rods are engineered to handle over 2,000 horsepower while maintaining excellent reliability and balance.

Features

• 6.125" Center-to-Center Length – Direct fit for Gen III, IV, and Gen V LT-based LS engines.

• Forged 4340 Steel Construction – Heat-treated and shot-peened for exceptional fatigue resistance.

• Patented 3-Pocket I-Beam Design – Provides up to 60% more bending strength and 20% less tensile stress than typical H-beam rods.

• Built for 2,000+ Horsepower – Ideal for turbocharged, supercharged, and nitrous-assisted applications.

• 7/16" ARP 2000 Cap Screw Fasteners – High-strength bolts rated to 220,000 psi; upgradeable to ARP 625+.

• 0.927" Wrist Pin Bore – Includes full-floating Ampco bronze bushings for reduced wear.

• 2.100" Crank Journal & 2.225" Big-End Bore – OEM-compatible dimensions for seamless integration.

• Average Weight: ~692 grams – Lightweight without compromising structural integrity.

• 26-Point CMM Inspection – Each rod is precision-measured and supplied with an individual report.

• Finish-Machined in Mentor, Ohio – USA-based quality control and consistency.

• Set of 8 Rods – Complete set for V8 LS engine configurations.