Brian Crower BMW S58B30T0 Lightweight Crankshaft - 96mm Stroke/4340 Billet

What you get with this Brian Crower crankshaft is a precision-machined component built for high-performance BMW S58 engines. This specific crankshaft features a 96mm stroke and is forged from 4340 billet steel, a material known for its exceptional strength and durability under extreme stress. It's designed to be a lightweight option, which can help improve engine responsiveness and allow for quicker spool-up times in turbocharged applications.

Brian Crower is well-known for producing robust internal engine components, and this crankshaft is no exception. The 4340 billet construction means it's forged from a solid piece of steel, giving it a strong grain structure that resists fatigue and fracture, even when subjected to the high cylinder pressures and rotational forces found in modified or racing engines. Its 96mm stroke is a notable increase over the stock dimension, which will increase the engine's displacement and potentially boost torque output. This part is intended for builders looking to maximize the performance potential of their S58 engine, whether for track use or serious street performance.

When undertaking a build that involves replacing the crankshaft, it's crucial to ensure all supporting components are up to the task. This includes proper balancing of the rotating assembly, using appropriate connecting rods and pistons, and ensuring your engine management system is tuned to take advantage of the increased displacement and potential for higher RPMs. Always refer to the manufacturer's installation instructions for critical details regarding bearing clearances, assembly procedures, and any specific requirements for your application.