LUNATI Rattler Torsional Vibration Absorber (1997-2013 Corvette & Z06)

All internal combustion engines display crankshaft torsional vibration. As the piston rises and falls so does cylinder pressure. The changing pressure results in forces being transmitted along the connecting rod and applied to the crankshaft journal. Lunati now offers the Rattler by TCI to counteract those vibrations by using internal rollers that automatically offset twisting forces that cause vibration. It is effective for the entire RPM range and extends crankshaft and bearing longevity, as well as increases valve train stability and life. The design does not utilize viscous fluids and requires virtually no maintenance. The unit's timing marks are etched onto the body and cannot move relative to crankshaft centerline. The Rattler is also lighter in weight than most units of the same size and material construction.

• CNC-machined to exacting tolerances; available in 6.25" and 7.25" diameters (external balanceChevrolets are 8" diameter)
• Timing marks are etched into body and can't move relative to the crankshaft
• Maintain effectiveness at all engine speeds
• No fluids, elastomers or friction materials; no pulley or crank trigger shims required
• SFI 18.1 certified