LS Forged Crankshaft 4.0 STRK w/58X Reluctor

The LS Forged Crankshaft 4.0 STRK w/58X Reluctor by Brian Tooley Racing is engineered for high-performance LS engine builds where reliability meets aggressive power delivery. This forged crankshaft is purpose-built for serious engine builders, track competitors, and street enthusiasts pushing their LS platforms beyond stock capabilities. Whether you're constructing a race engine or upgrading an existing LS platform, a quality forged crankshaft is the foundation that prevents catastrophic failure under extreme combustion pressures and RPM demands.

Brian Tooley Racing's forged construction provides superior strength compared to cast alternatives, allowing the crankshaft to withstand the stress of high-horsepower engines and forced induction applications. The 4.0-inch stroke specification delivers increased displacement and torque characteristics across the RPM range, making it ideal for both naturally aspirated and boosted configurations. The integrated 58X reluctor ring enables seamless compatibility with modern LS engine management systems and aftermarket ECU tuning, ensuring precise ignition timing and fuel mapping without requiring additional sensor modifications or standalone engine controllers.

This crankshaft suits engine builders working on LS1, LS2, LS3, and LS-based platforms where displacement increases or durability upgrades are priorities. Installation requires proper engine disassembly, precise torque specifications, and alignment with OEM or performance-matched components such as connecting rods, pistons, and balancing components. The 59.65-pound weight reflects the solid forged steel construction that guarantees long-term reliability in high-stress environments, making it a critical investment for any serious LS engine program designed for extended duty cycles at elevated power levels.