Pro Series Flexplate SBF 164 Tooth SFI 28oz Bal

The Pro Series Flexplate SBF 164 Tooth SFI 28oz Bal is a precision-engineered flexplate designed for Small Block Ford engines requiring externally balanced drivetrain configurations. Built for serious performance enthusiasts and professional builders, this flexplate serves as the critical link between your engine's crankshaft and automatic transmission, handling the rotational forces of high-horsepower builds while maintaining strict SFI safety certification standards. Whether you're assembling a street machine, bracket racer, or restomod, selecting the correct flexplate specification is essential to prevent catastrophic drivetrain failure and ensure harmonious engine-to-transmission coupling.

This Pro Series flexplate features 164 teeth for compatibility with standard Small Block Ford starters and incorporates 28 ounces of external balance weight to match engines that require external balancing rather than internal crankshaft balancing. The steel construction provides superior durability and heat resistance compared to cast iron alternatives, critical when dealing with high-RPM applications and aggressive throttle cycles. SFI 29.1 certification ensures compliance with sanctioning body safety requirements for drag racing, circle track, and other motorsports disciplines, meaning this component has undergone rigorous testing and meets strict failure-prevention standards that protect both vehicle and driver.

This flexplate is ideal for builders running non-internally balanced Small Block Ford engines, including stroker builds, blueprint engines, and vintage power plants where factory internal balancing specifications don't apply. Installation requires proper torque specifications and alignment to prevent runout, which can cause vibration and premature wear on transmission components. Verify your engine's balancing method and starter tooth count before purchase—external balance flexpates are not interchangeable with internally balanced versions, and incorrect selection will result in dangerous imbalances and potential drivetrain damage during operation.