Steel Flexplate - Small Block Mopar 1962-1991

The Steel Flexplate - Small Block Mopar 1962-1991 from PRW Industries is a precision-engineered rotating component designed for builders and enthusiasts who demand maximum durability in high-performance applications. This flexplate serves as the critical link between your engine's crankshaft and automatic transmission, absorbing shock loads and vibration while maintaining perfect balance. Whether you're building a street machine, weekend cruiser, or competition vehicle with a classic or modern Mopar small block, this component is engineered to handle the demands of both stock and modified powerplants.

Constructed from premium steel and manufactured to SFI 29.1 safety standards, the Steel Flexplate features internal balance design that works seamlessly with internally balanced crankshafts common in Mopar small block engines from 1962 through 1991. The internal balance approach eliminates the need for external counterweights, reducing rotating mass while improving throttle response and engine efficiency. Steel construction provides superior strength compared to aluminum alternatives, making it the preferred choice for high-horsepower builds, forced induction applications, and vehicles subjected to sustained load cycles. The Platinum Series Xtreme Duty designation confirms PRW's commitment to longevity and reliability under extreme operating conditions.

Mechanics and engine builders typically choose this flexplate when installing built or stroked small block Mopar engines into vehicles equipped with automatic transmissions, particularly TorqueFlite units common to the 1962-1991 platform. The internal balance feature ensures compatibility with crankshafts that have balance weights machined into the crank itself—critical for avoiding vibration issues that can damage bearings and seals. Proper installation requires torquing fasteners to factory specifications and confirming balance matches between crankshaft, flexplate, and converter assembly. At 4.71 lbs, this component represents a reasonable weight penalty for the reliability and safety margin it provides in demanding street and track applications.