South Bend Clutch 1969-1973 Nissan 240Z SBCFNIS-6 4140 Billet SMF SBCFNIS-6

This Billet Single Mass Flywheel is crafted from low carbon, hot rolled steel, making it highly resistant to warping. It is CNC machined to ensure precise tolerances and perfect balance, surpassing OEM specifications. Extensive field-testing has determined the optimal weight for each specific vehicle, guaranteeing smooth operation, safety, and durability even under extreme conditions. While compatible with OEM clutch kits, it is recommended for use with South Bend Clutch kits for superior damping of clutch engagement. Due to its lightened single mass design, users may experience increased "NVH" (Noise, Vibration, and Harshness) or "chatter" during operation, which can be influenced by other drivetrain modifications.