Extreme Duty Flexplate - SFI BBF 164T - Int. Bal.

The Extreme Duty Flexplate - SFI BBF 164T - Int. Bal. from PRW Industries is engineered for high-performance big block Ford engines that demand absolute reliability under extreme conditions. A flexplate serves as the critical connection between your engine's crankshaft and torque converter, transferring engine power to the transmission while accommodating minor misalignment. This 164-tooth SFI-certified unit is purpose-built for race and high-output street applications where standard flexplates fall short.

Constructed from premium steel and internally balanced, this flexplate is designed to withstand the rotational forces and shock loads inherent to big block Ford platforms. The 164-tooth configuration ensures precise starter engagement across the full range of engine speeds, while internal balancing eliminates the need for separate balancing procedures during installation. SFI 29.1 certification confirms this component meets sanctioning body standards for drag racing, oval track competition, and performance street use—a critical requirement for any serious performance build where safety and durability are non-negotiable.

This flexplate is ideal for engine builders, restoration specialists, and performance enthusiasts upgrading big block Ford powerplants for street or competition duty. Weighing 8.35 lbs and measuring 14.2 inches in diameter, it integrates directly into factory big block Ford installations without modification. Whether you're building a vintage muscle car, drag strip competitor, or high-horsepower street engine, the Extreme Duty Flexplate delivers the proven durability and precision fit that separates professional-grade components from budget alternatives.