Pro Series Flexplate SFI 29.1 SB BB Mopar

The Pro Series Flexplate SFI 29.1 SB BB Mopar by PRW Industries is engineered for serious enthusiasts and professional builders who demand reliability in high-performance drivetrain applications. A flexplate serves as the critical connection between your engine and automatic transmission, transferring torque while accommodating engine movement through controlled flex. Whether you're building a street machine, weekend warrior, or competition platform, selecting the correct SFI-certified flexplate is non-negotiable for safety and longevity.

This Pro Series design features SFI 29.1 certification, the industry standard for flexplate safety ratings that ensure the component won't fragment under extreme load conditions—critical in turbocharged, supercharged, or high-horsepower engine builds. The small block/big block (SB BB) designation confirms compatibility across a wide range of Mopar engine families, delivering the proper bolt pattern, diameter, and flex characteristics for reliable power transmission. PRW Industries' Pro Series construction utilizes premium materials and precision manufacturing to handle elevated power levels while maintaining the elasticity required for smooth engagement and vibration dampening during acceleration and load cycling.

This flexplate is ideal for Mopar owners upgrading to high-output engines, installing superchargers or turbochargers, or transitioning to modern automatic transmissions. Weighing 4.85 lbs and measuring 13 x 1 x 14 inches, it's a direct bolt-in replacement for factory flexplates on compatible Mopar platforms. Installation requires proper torque sequencing and alignment with your transmission's input shaft—consult your build manual or transmission specifications to confirm fitment with your specific engine block and transmission combination.