Brian Crower Lightweight Crankshaft 100mm Stroke 4340 Billet | BMW 340i/440i (BC5321LW)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 vehicles performance. Whether you're building a high horsepower street
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Brian Crower Lightweight Crankshaft 100mm Stroke 4340 Billet | BMW 340i/440i (BC5321LW)