Extreme Duty Flexplate - SFI SBC 57-85 153 Tooth

The Extreme Duty Flexplate - SFI SBC 57-85 153 Tooth from PRW Industries is designed for high-performance small-block Chevy engine builds, particularly for those upgrading to automatic transmission setups. This flexplate is engineered to withstand the demands of serious horsepower while adhering to SFI safety certification standards.

Constructed from reinforced steel, the flexplate minimizes flexing and harmonic distortion under high-load conditions, making it essential for performance applications. It serves as the critical link between the engine's crankshaft and torque converter, ensuring reliable power transfer and reducing the risk of catastrophic failure.

Engine builders and mechanics rely on this flexplate for restoring or modifying 1957–1985 SBC engines, particularly those compatible with Turbo 400 and Turbo 350 transmissions. The 153-tooth configuration ensures compatibility with factory and aftermarket torque converters designed for this tooth count.