LS 4340 Billet Crank 4.000 Str w/Short Snout

The DART LS 4340 Billet Crank with 4.000-inch stroke and short snout is designed for serious LS engine builders who prioritize reliability in high-performance applications. This billet 4340 steel crankshaft serves as a critical component for custom LS engine builds, ranging from street performance to competitive setups.

Constructed from premium 4340 billet steel, this crankshaft provides superior fatigue resistance and tensile strength compared to cast alternatives, making it ideal for forced induction, nitrous, and high-RPM applications. The 4.000-inch stroke configuration allows for significant displacement increases when paired with appropriate bore sizing, enabling builders to customize engine displacement without modifying the block.

This DART billet crankshaft is compatible with LS1, LS2, LS3, and LS-based engine platforms, where OEM components may struggle under high load conditions. Installation requires professional machine work, including balancing, journal inspection, and proper clearance to ensure optimal performance.