Pro Series Flexplate GM LS 168T SFI Quick Launch

The Pro Series Flexplate GM LS 168T SFI Quick Launch is engineered for serious LS engine builders and drag racing enthusiasts who demand lightweight, SFI-certified performance components. This flexplate serves as the critical link between your LS engine and transmission, replacing the factory cast iron unit with a precision-machined aluminum design that reduces rotating mass and improves engine response. Built for high-horsepower applications, the 168-tooth configuration ensures compatibility with modern LS engine blocks while the quick-launch design minimizes converter lag in racing scenarios.

Manufactured by PRW Industries Inc., this Pro Series flexplate combines aerospace-grade aluminum construction with CNC precision machining to deliver a product that weighs just 8.04 lbs—substantially lighter than OEM cast alternatives. The SFI certification (Society of Automotive Engineers) guarantees it meets stringent safety standards for high-performance and racing environments, including dynamic balancing and impact resistance testing. The quick-launch feature reduces the rotating inertia between engine and torque converter, translating to faster throttle response and improved power delivery during acceleration. All mounting surfaces are precision-finished to ensure proper alignment and eliminate vibration issues common with inferior aftermarket units.

This flexplate is ideal for LS-swapped vehicles, naturally aspirated high-displacement builds, and turbocharged or supercharged engine combinations where every fraction of a second matters. Whether you're building a bracket-racing competitor, street performance hotrod, or drag strip contender, the Pro Series design works seamlessly with modern automatic transmissions and aftermarket torque converters. Installation requires basic mechanical knowledge—bolt removal and alignment with your specific transmission is straightforward, though professional installation is recommended for optimal balance verification. The 168T configuration is standard for Gen III and Gen IV LS engines, making this a direct replacement that requires no adapter rings or modifications.