SBM 340 Cast Steel Crank - 4.000 Stroke

The SBM 340 Cast Steel Crank with 4.000 stroke from SCAT Enterprises is engineered for serious small-block engine builders seeking reliable bottom-end performance in street, strip, and bracket racing applications. This crankshaft serves as the rotating foundation of any high-performance engine build, converting reciprocating piston motion into usable rotational power. Whether you're assembling a 340 cubic inch displacement engine or rebuilding a performance platform, a quality cast steel crank is non-negotiable for durability and consistent power delivery under load.

Cast steel construction provides an excellent balance between strength and cost-effectiveness compared to forged alternatives, making it the preferred choice for street applications and entry-level competition builds. The 4.000-inch stroke specification defines the piston's full travel distance within the cylinder bore, directly influencing engine displacement, torque characteristics, and rpm ceiling. At 56.9 pounds, this crankshaft's mass is appropriately engineered to handle stress loads while maintaining acceptable rotating inertia for responsive throttle modulation.

SCAT Enterprises' manufacturing standards ensure precise journal sizing, proper counterweight balance, and consistent metallurgy throughout the casting—critical factors for minimizing vibration and extending bearing life across thousands of operating hours. Engine builders and mechanics restoring or modifying small-block platforms will find this crankshaft an essential component for achieving optimal performance. Its design and construction make it suitable for a variety of applications, ensuring reliability and efficiency in demanding conditions.