Billet Flexplate SFI SBC/BBC 168-Tooth

The Billet Flexplate SFI SBC/BBC 168-Tooth from ProTorque is an essential precision component for high-performance engine builders and transmission specialists working with American V8 powerplants. This flexplate serves as the critical mechanical interface between your engine's crankshaft and automatic transmission torque converter, handling the rotational loads generated during acceleration, deceleration, and full-throttle operation. Whether you're building a street engine, restoration project, or performance application, a quality flexplate rated to SFI standards ensures reliability under sustained stress.

ProTorque's billet construction delivers superior material integrity compared to cast alternatives, reducing flex and vibration while improving power transfer efficiency. The 168-tooth design is purpose-built for small-block Chevrolet (SBC) and big-block Chevrolet (BBC) engines, providing proper engagement with transmission starters across a wide range of displacement and build configurations. SFI certification confirms this flexplate meets strict safety and performance standards established by the Society of Automotive Engineers, critical for both street use and sanctioned racing applications. The billet aluminum or steel construction resists cracking under thermal cycling and extreme load conditions that commonly develop in cast flexplates.

Professional mechanics, engine shops, and serious enthusiasts rely on this flexplate for engine swaps, rebuilds, and performance upgrades requiring dependable torque converter coupling. Installation requires proper balancing and alignment with your specific crankshaft flange and transmission bell housing; consult your engine builder or transmission specialist to confirm compatibility with your particular block variant and transmission pairing. At 8.33 lbs, the component integrates seamlessly into compact engine bays while maintaining the structural rigidity needed for long-term durability.