Pro Series Flexplate SFI 29.1 63-82 SBF 157T

The Pro Series Flexplate SFI 29.1 63-82 SBF 157T is engineered for small-block Ford enthusiasts upgrading to automatic transmission conversions or high-performance rebuilds. This component bridges the crankshaft and torque converter, absorbing shock loads while maintaining precision concentricity critical for smooth driveline operation. Built for 1963–1982 small-block Ford engines with 157-tooth ring gear configurations, this flexplate serves both street and performance applications where reliability under load is non-negotiable.

PRW Industries manufactures this flexplate to SFI 29.1 certification, the industry standard for vibration damping and safety in high-rpm environments. The 157-tooth design ensures proper starter engagement and torque converter lock-up across the powerband. Precision-balanced and manufactured from premium steel, the Pro Series construction minimizes harmonic vibration and flex under extreme load—critical factors when running modified engines or upgrading transmission systems. The 8.08 lb weight reflects the robust engineering required for durability in performance builds.

Mechanics and engine builders rely on this flexplate for complete automatic transmission swaps on classic and modified small-block Fords. Installation requires engine removal and crankshaft access, making it ideal for full-rebuild scenarios where transmission changes are planned. Verify your engine year and displacement before purchase—this unit is engineered specifically for 1963–1982 SBF platforms with 157-tooth requirements. Proper torque sequencing during installation ensures maximum service life and driveline stability.