Pro Series Flexplate SFI 57-85 SBC 90 V6 153T

The Pro Series Flexplate SFI 57-85 SBC 90 V6 153T by PRW Industries is engineered for serious engine builders and performance mechanics who demand reliability when bolting an automatic transmission to small-block Chevrolet or 90-degree V6 platforms. This flexplate serves as the critical mechanical interface between your engine's crankshaft and torque converter, absorbing vibration and transmitting power while protecting both drivetrain components from shock loads. Whether you're building a street performance engine, a stroker combination, or restoring a classic with modern transmission technology, a quality flexplate is non-negotiable for long-term durability.

PRW's Pro Series construction prioritizes strength and balance with a 153-tooth configuration optimized for SBC and 90-degree V6 compatibility, ensuring consistent starter engagement and smooth power delivery across the rev range. The flexplate is manufactured to meet SFI 57-85 safety specifications, a critical standard that validates its ability to contain internal engine component fragments in catastrophic failure scenarios—essential insurance for any high-performance build. At 5.895 pounds and compact 13.05-inch diameter, this design fits within tight engine compartments while maintaining the rigidity necessary to prevent harmonic imbalance, flexing predictably under load without permanent deformation or stress cracks.

Mechanics and engine builders installing this Pro Series Flexplate SFI 57-85 SBC 90 V6 153T will appreciate its application-specific engineering for small-block Chevrolet engines and 90-degree V6 blocks, making it ideal for transmission swaps, stroker builds, and performance restorations where OEM parts no longer cut it. Installation requires proper torque sequence and attention to crankshaft flange cleanliness to ensure full contact and eliminate runout issues. This is the component you buy once and never think about again—confidence in your drivetrain's ability to handle power, abuse, and the test of time.