Upper Pulley Spider BBC/ Rocket/DRCE-2

The Upper Pulley Spider BBC/Rocket/DRCE-2 by JESEL is a precision-engineered engine accessory designed for high-performance small-block Chevrolet (BBC), Rocket, and dual-rocker cam engine (DRCE-2) platforms. This component is ideal for dedicated enthusiasts, race teams, and engine builders who require reliable performance under extreme operating conditions.

Constructed with JESEL's trademark precision machining, the Upper Pulley Spider manages critical pulley alignment and belt tension, which is essential for consistent power delivery and component longevity. The spider design distributes load evenly across multiple contact points, minimizing deflection and vibration—critical factors in high-revving engines where harmonic instability can compromise belt life and accessory performance.

Weighing just 0.74 lbs, this component integrates seamlessly into engine bay configurations without adding unnecessary mass or complexity. Engine builders and performance shops often choose JESEL pulleys for both street and race applications due to their reliability and performance capabilities.