GM LS 4340 Steel Crank 3.622 Stroke 24X Reluct

The GM LS 4340 Steel Crank 3.622 Stroke 24X Reluctor is a precision-engineered crankshaft designed for LS engine builders and performance enthusiasts seeking reliability in high-demand applications. This forged component serves as the backbone of LS-platform engine builds, converting reciprocating piston motion into rotational power with exceptional durability. Whether you're assembling a street performance engine, race car, or truck build, this crankshaft delivers the structural integrity required for sustained power delivery and long-term dependability.

Manufactured from premium 4340 steel, this crankshaft combines high tensile strength with superior fatigue resistance, making it suitable for both naturally aspirated and forced-induction applications. The 3.622-inch stroke dimension directly influences engine displacement and power characteristics, allowing builders to fine-tune performance parameters within the LS family. The integrated 24X reluctor ring provides electronic fuel injection and ignition timing trigger points, eliminating the need for aftermarket sensor rings and ensuring seamless integration with modern engine management systems. The robust construction and balanced design minimize vibration and harmonics, contributing to smoother operation and extended component lifespan.

This Eagle crankshaft is ideal for LS1, LS2, LS3, and compatible LS-platform engine configurations, making it a go-to choice for engine builders and restoration specialists. Installation requires standard engine assembly practices and compatibility verification with your specific block, connecting rods, and intake manifold configuration. Its substantial 60.8-pound weight reflects the solid construction necessary for reliable operation in high-RPM and high-boost environments, delivering the performance-grade quality that serious enthusiasts demand.