SBF Internal Balance SFI Flexplate 164 Tooth

The TCI SBF Internal Balance SFI Flexplate 164 Tooth is a precision flexplate engineered for small block Ford engine builds requiring SFI 29.1 certification. This internal balance unit features a 164-tooth design with an 11.5-inch bolt circle, delivering the torque management and rotational stability critical for high-output engine combinations. Built in steel construction, this flexplate meets SFI standards for both street and competition applications where component integrity under load is non-negotiable.

The internal balance design eliminates the need for separate balance weights on the crankshaft, simplifying engine assembly while maintaining precision mass distribution. The 164-tooth design ensures reliable starter engagement and clean torque transfer to the transmission. Steel construction provides the durability needed for sustained high-RPM operation and repeated thermal cycling without degradation. The SFI 29.1 certification confirms compliance with safety standards governing flexplate integrity in competition and high-performance environments, addressing a critical failure point in engine power delivery.

This flexplate serves builders and engine shops specializing in small block Ford performance packages, street-strip builds, and competition engines where balanced power delivery and reliability are required. The 11.5-inch bolt circle secures the transmission bell housing with predictable clamping force, essential for applications experiencing shock loads during aggressive acceleration or repeated launch events. Technicians and engine builders seeking a certified, internally balanced solution for small block Ford applications will find this unit meets exacting standards without compromise on material quality or dimensional accuracy.

Small block Ford flexplate selection requires attention to balance architecture and certification status. Internal balance units reduce overall system complexity by consolidating balance specifications into a single component, whereas externally balanced designs demand matching damper and flexplate pairs. SFI certification provides documented evidence that the component meets impact and rotational safety standards, critical when operating in environments where flexplate failure could result in catastrophic driveline separation.