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 a precision-engineered crankshaft designed for high-performance LS-series engine builds. This billet steel crankshaft is manufactured to exacting tolerances and features internal balancing, making it ideal for street, strip, and race applications where reliability and consistent performance are non-negotiable. The short snout configuration provides compatibility with a wider range of accessory options while the one-piece seal design eliminates potential leak points common in older two-piece designs.

Built from billet steel rather than cast iron, this crankshaft offers superior strength-to-weight ratio and enhanced durability under high RPM and high-boost conditions. The 4.000-inch stroke specification is a fundamental dimension that determines engine displacement and influences the power band characteristics of LS-series engines. Internal balancing means the rotating assembly operates with minimal vibration, reducing stress on the block and supporting components during sustained high-performance driving. The short snout design accommodates a variety of damper and accessory configurations without requiring custom mounting solutions.

This component is essential for engine builders and enthusiasts pursuing serious LS-series upgrades. Whether constructing a naturally aspirated engine for road course competition, preparing a turbocharged street engine, or assembling a dedicated drag racing power plant, a quality billet crankshaft is foundational to long-term reliability. The DART LS 4340 Billet Crank delivers the strength and precision expected in professional engine builds, eliminating factory casting limitations and providing confidence in extreme operating conditions.