A high-performance valvetrain system manufactured by Jesel utilizes a belt-drive system to actuate the valves in a Big Block Chevy (BBC) engine. This system replaces the traditional pushrod and rocker arm setup with a cogged belt connecting the crankshaft to the camshaft, which in turn drives the valves directly or through a rocker arm system. This configuration allows for significantly higher engine speeds and improved valvetrain stability compared to traditional designs.
Enhanced engine performance and reliability are key advantages of this technology. The precise control over valve timing facilitated by the belt drive reduces variations and potential valve float at high RPM. This precision contributes to increased horsepower and torque, particularly in racing or high-performance applications. The reduction in valvetrain inertia also improves engine response and efficiency. This type of valvetrain system has become popular in professional motorsport due to its robust nature and ability to withstand the stresses of high-revving, powerful engines. Its development and refinement have followed the ongoing pursuit of maximizing engine output and durability in demanding racing environments.
