Drag Cartel K-SERIES K24 Heavy Duty Timing Chain - DC-K24-HP-CHAINK SERIES K20 and K24 Heavy Duty Timing Chain Within the growing K Series Market and extra demand of hi performance driving even with the standard road engine and or components such as camshafts that place extra stress on the valve train system, improved chain strength is important. The highly precise side plates reduce friction and improve the revolution fatigue strength by increasing the area of the plates, a reduction in the burrs, and the finish to