Overview 

The BoostLine Connecting Rods for the TB48DE engine are engineered for high-horsepower performance and durability in demanding motorsport applications. With a center-to-center length of 6.437 inches (163.5 mm), they match OEM specifications for seamless fitment. These rods are forged from premium 4340 steel, heat-treated, and shot-peened to maximize fatigue resistance and strength. Their patented three-pocket I-beam design offers up to 60% greater bending strength and a 20% reduction in tensile stress compared to standard H-beam rods, making them ideal for turbocharged or nitrous-assisted engines. Each rod includes a 22 mm pin bore with Ampco/Copper bronze full-floating bushings to minimize friction and ensure long service life. They are secured with 7/16" ARP 2000 fasteners, with optional upgrades to ARP 625+ for extreme builds. Every set undergoes a 26-point CMM inspection, comes with an individual quality report, and is finish-machined and shot-peened in Mentor, Ohio, ensuring precise balance and consistent high performance. These rods are capable of supporting 1,500 to 2,000 horsepower in six-cylinder configurations, making them a top-tier choice for serious TB48 engine builds.

Features 

• 6.437" Center-to-Center Length – Matches OEM specifications for TB48DE engine compatibility.

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

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

• Supports 1,500–2,000 Horsepower – Ideal for high-boost, forced induction, and nitrous applications.

• 7/16" ARP 2000 Fasteners – High-strength bolts with upgrade option to ARP 625+ for extreme performance builds.

• 22 mm Pin Bore – Includes Ampco/Copper bronze full-floating bushings for reduced friction and enhanced durability.

• Precision-Crafted and Inspected – Undergoes 26-point CMM inspection with individual quality reports for each rod.

• Finish-Machined in Mentor, Ohio – Ensures tight tolerances and consistent performance.

• Sold as a Set of 6 – Complete set for inline-6 TB48 engine configurations.