Brian Crower Lightweight Crankshaft 100mm Stroke 4340 Billet | BMW 340i/440i (BC5321LW)
Brian Crower Lightweight Crankshaft 100mm Stroke 4340 Billet | BMW 340i/440i (BC5321LW)
SKU:BC5321LW
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The Brian Crower Lightweight Crankshaft for BMW 340i and 440i is a high-performance engine component designed to enhance power and durability. Crafted from 4340 billet steel, this 100mm stroke crankshaft offers reduced weight for improved engine response and efficiency. Its precision CNC machining ensures accuracy within .02mm, contributing to optimal balance and reliability. Proven through dyno testing, this crankshaft is engineered to deliver increased horsepower and torque, making it suitable for performance applications. Its robust construction and quality manufacturing provide long-lasting performance under demanding conditions, making it an ideal upgrade for enthusiasts seeking to maximize their engine's potential.
This crankshaft is compatible with BMW models from 2016 to 2023, specifically the 340i and 440i equipped with inline-six engines. It serves as a direct replacement for stock components, offering a straightforward bolt-on installation for experienced mechanics or skilled enthusiasts. Designed primarily for street and track use, this lightweight crankshaft enhances engine responsiveness and overall performance. The kit includes the crankshaft itself, with no additional components specified. Proper fitment and installation are essential for optimal results, and this product is best suited for those aiming to improve engine performance in high-performance or racing setups.
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Overview
Overview
Brian Crower Lightweight Crankshaft
Part #: BC5321LW
Overview
The Brian Crower Lightweight Crankshaft is a high-performance engine component designed specifically for BMW 340i and 440i models. Crafted from premium 4340 billet steel, this crankshaft features a 100mm stroke, offering a significant upgrade in durability and responsiveness for enthusiasts seeking to enhance their vehicle’s performance. Whether you're building a high-horsepower street machine or a track-ready setup, this crankshaft provides the strength and reliability needed for demanding applications. Its lightweight design reduces rotating mass, contributing to improved throttle response and engine efficiency, making it an ideal choice for those aiming to maximize engine performance and longevity.Key Features
This crankshaft is engineered with precision and quality in mind, incorporating several key features:- Constructed from high-grade 4340 billet steel for exceptional strength and durability
- Lightweight design reduces rotational inertia for quicker engine response
- Precisely machined on state-of-the-art CNC grinders to ensure tight tolerances within .02mm
- Designed to support high-performance builds and increased horsepower output
- Compatible with OEM and aftermarket engine components for versatile upgrades
- Prototyped and dyno-tested to verify performance gains and reliability
- Passes strict quality control standards for consistent performance
Construction & Design
The crankshaft’s billet construction ensures maximum strength and resistance to fatigue under high-stress conditions. Its lightweight profile is achieved through meticulous machining, optimizing weight without compromising structural integrity. The precision grinding process guarantees a perfect balance and smooth operation, essential for high-revving engines and performance tuning.Driving Feel & Feedback
This lightweight crankshaft enhances engine responsiveness, providing a more immediate throttle feel and smoother acceleration. Its robust design supports high RPM operation, offering improved engine stability and reduced vibrations during aggressive driving or racing conditions.Installation & Fitment
Installation requires standard engine disassembly procedures and should be performed by qualified technicians familiar with BMW engine internals. Compatibility should be verified against your specific vehicle model and engine configuration to ensure proper fitment.What’s Included
The package includes the lightweight billet crankshaft ready for installation, with all necessary hardware and mounting components compatible with BMW 340i/440i engines.