XDP Performance Valve Springs & Retainer Kit 1989-1998 Dodge 5.9L Cummins

Fortify the valvetrain in your 1989-1998 Dodge 5.9L Cummins when you install the XDP Performance Valve Springs and Retainer Kit XD389. Valve springs are a vital upgrade that are often ignored in many performance builds. The stock valve springs in your Cummins engine are not designed to handle the increased engine RPM or higher boost levels that are common in modified applications. Even typical upgrades like an exhaust brake, aftermarket turbocharger, fuel plate, and injectors can trigger valve float that may result in catastrophic engine damage. In addition, your valves can be pushed open by boost and drive pressure causing reversion. Reversion is when exhaust gasses flow back into the cylinder on the intake stroke, hindering your engine performance. These potential issues are the reason upgraded valve springs are essential on modified engines! The XDP Performance Valve Springs and Retainer Kit XD389 features a conical design that offers improved valve control over a basic straight spr