LS Apex 4340 Forged Crank 4.000 Stroke

The LS Apex 4340 Forged Crank 4.000 Stroke by CALLIES is designed for serious LS engine builders who demand maximum reliability in high-performance applications. This premium crankshaft is ideal for those building track-focused engines, street monsters, or competition-grade power plants. CALLIES is a trusted name in the performance automotive community, known for its durable forged rotating assemblies.

Forged from high-quality 4340 steel, the LS Apex crank features a robust 4.000-inch stroke, which is essential for enhancing displacement and torque in LS blocks while maintaining compatibility with factory architecture. The forging process results in a denser and stronger molecular structure compared to cast alternatives, allowing the crank to endure extreme cylinder pressures. CALLIES employs proprietary shot-peening and stress-relief procedures to ensure consistent performance across numerous combustion cycles.

Builders assembling stroker packages or those utilizing forced induction, nitrous, or high-RPM naturally aspirated setups will find this crankshaft particularly beneficial. Its superior fatigue resistance and dimensional stability make it suitable for tight piston-to-head clearance work. The LS Apex crankshaft is the preferred choice for those who prioritize durability and performance in their LS engine builds.