Jesel KBD-31550

The Jesel KBD-31550 is a premium timing chain and sprocket set engineered for precise camshaft timing in high-performance engines. The timing set maintains the critical relationship between crankshaft and camshaft rotation -- any variation here costs power and risks valve-to-piston interference.

Featuring a true roller chain design with matched sprocket sets, this timing set eliminates the slack and timing variation common with stock-style silent chains. The steel sprockets are precision-machined for concentricity and feature multiple keyway positions for degreeing the camshaft without offset bushings. Multiple keyway positions allow 2, 4, 6, and 8 degrees of advance or retard adjustment at the crankshaft, giving you fine control over cam timing to dial in your power curve. The roller chain reduces friction and improves timing accuracy at all RPM levels, especially under load where chain whip can introduce timing errors.

The chain tensioner is spring-loaded and self-adjusting where applicable, maintaining proper chain tension throughout the engine life. This eliminates timing chain slap that causes inaccurate cam timing and eventual chain failure in high-mileage or high-RPM engines. The sprocket teeth are heat-treated for wear resistance, and the chain is pre-stretched during manufacturing to minimize initial timing changes during break-in. Designed as a direct replacement for factory timing sets on compatible applications, installation is straightforward with standard tools.

At elevated RPM, timing chain stretch becomes a real concern that affects valve timing and power output. This timing set's true roller design reduces stretch significantly compared to stock chains while maintaining timing accuracy within tight tolerances at the camshaft. The difference in throttle response and top-end power between a stretched stock chain and a fresh true roller set is immediately noticeable on the first test drive. Order your Jesel KBD-31550 and time your build right from the start.