Pro Series Flexplate SFI 29.1 Gen 3 Hemi

The Pro Series Flexplate SFI 29.1 Gen 3 Hemi from PRW Industries is purpose-built for high-performance Mopar enthusiasts and serious engine builders working with modern Chrysler Hemi platforms. If you're upgrading a Gen 3 Hemi engine—whether for street performance, drag racing, or forced induction—this flexplate serves as the critical mechanical interface between your engine and transmission, engineered to handle elevated power outputs and sustained rpm demands that factory components cannot reliably support.

This flexplate carries SFI 29.1 certification, meaning it meets the Society of Automotive Engineers' safety standards for high-performance and racing applications—a specification you'll find mandatory at most drag strips and sanctioned events. PRW Industries manufactures this component to precise tolerances, ensuring proper engine-to-transmission alignment and balanced operation at high rpm. The proven design minimizes harmonic vibration and flex-related wear on transmission input shafts, a common failure point in modified Hemis running boost or nitrous. At 7.39 lbs and measuring 14.25 inches in diameter, it's engineered to the exact specifications Gen 3 Hemi platforms require for direct bolt-on fitment without modification.

Builders upgrading to high-stall torque converters, installing superchargers or turbochargers, or pushing horsepower beyond 500 hp will benefit most from this upgrade over OEM flexplates, which flex and wear under sustained stress. Installation is straightforward during engine-out service or transmission removal—simply unbolt the original unit and secure this PRW flexplate to your Gen 3 Hemi crankshaft flange using the factory bolt pattern. Verify your torque converter bolt pattern matches before ordering to ensure compatibility with your specific transmission assembly.