Making 2,500 horsepower from a diesel is the easy (Ha!) part. Keeping the engine together is the real challenge, and the connecting rods are usually the first thing to let go under that kind of stress. The new Boostline connecting rods have tackled this problem head-on with an engineered connecting rod specifically designed to survive in the most extreme Duramax and Cummins builds.

Solving the Stress Riser Problem

The weak point in many connecting rods is the stress riser — sharp corners or transitions in the beam where forces concentrate and cracks begin to form. To get around this, Boostline developed its patented “three-pocket” design. Instead of a traditional I-beam, this unique shape distributes the immense load across the entire rod, eliminating the weak points where failures typically start. It’s an engineering solution to a very expensive problem.

The Engineering Behind BoostLine Connecting Rods

These are serious, U.S.-made rods forged from high-quality 4340 forged steel. The design wasn’t just a guess; BoostLine validated it with extensive Finite Element Analysis (FEA) on the computer before ever putting it in a real engine. This process allowed them to create a rod that is incredibly strong while also being mindful of weight.

Purpose-Built for Duramax and Cummins

BoostLine isn’t trying to make a one-size-fits-all product; these are purpose-built for the most popular high-performance diesel platforms. For both Duramax and Cummins engine builders and crowd, Boostline’s connecting rod can handle brutal cylinder pressures of an engine making 2,000 to 3,000 horsepower. These are not intended for your daily driver; they are for competition-level builds where factory parts would fail instantly.

The Insurance Policy for Your Engine Block

At this level of performance, connecting rods are not just another component; they are an insurance policy for your entire engine investment. A single rod failure can destroy a block, heads, and a turbo in a split second. The Boostline connecting rods provide the reliable foundation that a four-digit horsepower build needs, giving engine builders the confidence that their creation will hold together, run after run.