SBF Flexplate - SFI- 157 Tooth- 28.8oz.

The SBF Flexplate - SFI- 157 Tooth- 28.8oz is an essential drivetrain component for small-block Ford engine swaps and high-performance buildup projects. As a flex coupling between your engine's crankshaft and automatic transmission, this flexplate absorbs torsional vibration and compensates for minor misalignment while transmitting engine torque directly to the converter. Whether you're installing a carbureted 289, a stroker 347, or a fuel-injected crate engine into a classic or modern vehicle, a quality SFI-certified flexplate ensures reliable starts and smooth power delivery without premature wear on transmission input shafts.

This SCAT ENTERPRISES unit features 157 teeth and a precisely balanced 28.8-ounce design optimized for small-block Ford applications. The SFI-157 rating confirms it meets Society of Automotive Engineers dynamic balancing and material standards for street and strip use, meaning it will contain converter fragments in the unlikely event of catastrophic failure—a critical safety feature when running higher boost levels or aggressive nitrous systems. The flexplate's steel construction and precision machining ensure concentricity with your crank flange, minimizing vibration and protecting your transmission's torque converter studs from fatigue cracking.

Mechanics and engine builders favor this flexplate for restorations, fuel-system conversions, and engine transplants where original equipment no longer meets durability demands. The 157-tooth count is standard across most small-block Ford automatic transmissions (C4, C6, and overdrive units), making it a direct bolt-on replacement for vehicles ranging from 1960s muscle cars to modern street machines. Installation requires careful alignment to your crankshaft flange and proper torque sequencing to prevent bolt preload loss under load—always verify tooth count and balance specifications match your transmission and engine combination before final assembly.