Brian Crower Crankshaft - LightWeight Polaris Pro R Crankshaft / 78mm Stroke / 4340 Billet

This Brian Crower crankshaft is a lightweight, 78mm stroke unit specifically made for the Polaris Pro R. It's constructed from 4340 billet steel, a strong material known for its durability and ability to handle high performance demands. This crankshaft is designed to be a direct replacement for the stock unit, offering an improved option for those looking to enhance their engine's capabilities.

The use of 4340 billet steel means this crankshaft has excellent strength-to-weight characteristics. This is crucial for high-revving engines where reducing rotational mass can lead to quicker engine response and improved overall performance. The 78mm stroke is a specific dimension that influences the engine's displacement and powerband, and this part is engineered to meet those specifications precisely. Brian Crower is a well-known name in performance engine components, and this crankshaft reflects their commitment to producing solid parts for demanding applications.

When rebuilding or upgrading your Polaris Pro R engine, a strong and lightweight crankshaft like this Brian Crower unit is a foundational component. It's designed to handle the stresses of performance driving and racing. Ensure you consult the manufacturer's installation instructions for proper fitting and any associated hardware or procedures required for a complete engine build.