LS2 4340 Forged Crank 3.622 Stroke 58-Tooth

The LS2 4340 Forged Crank 3.622 Stroke 58-Tooth by EAGLE represents the foundation of serious LS engine performance builds and restorations. This forged crankshaft is engineered for enthusiasts and professional builders who demand reliability in high-output applications, whether you're pushing naturally aspirated limits or running forced induction setups. The 4340 chromoly steel construction provides superior strength and fatigue resistance compared to cast alternatives, making it the preferred choice for street, strip, and track-focused LS2 platforms.

The 3.622-inch stroke specification directly affects engine displacement and torque characteristics, creating a balance suited for mid-range power delivery across the RPM band. EAGLE's precision forging process ensures consistent grain structure and superior material integrity throughout the crankshaft, eliminating weak points that plague cast cranks under boost or high-RPM stress. The 58-tooth reluctor ring enables reliable engine management integration with modern ECU platforms and aftermarket tuning systems, allowing accurate fuel and ignition timing control essential for optimized performance and drivability.

This crankshaft suits builders upgrading factory internals for increased displacement or reinforcing stock engines destined for turbo, supercharger, or nitrous applications. Compatibility spans LS2-based engine families commonly found in Corvettes, Camaros, and LS swap platforms, with straightforward installation into prepared blocks using OEM-spec main bearing journals. Proper balancing to your specific rotating assembly weight and fastener-grade preparation during assembly are critical for maximum longevity and performance—work with experienced builders or machine shops familiar with LS engine dynamics to ensure optimal results.