Billet Steel Flywheel SBF 157t 28oz Ext Bal

The Billet Steel Flywheel SBF 157t 28oz Ext Bal (RAM CLUTCH 1527) is a precision-engineered component designed for serious small-block Ford engine builders and performance mechanics seeking maximum reliability and repeatability in high-RPM applications. This externally balanced flywheel serves as the critical mechanical interface between your engine and transmission, and selecting the correct unit is non-negotiable for proper driveline harmony. Whether you're building a street machine, drag racer, or engine swap platform, the SBF 157-tooth configuration with 28-ounce external balance specification ensures your crankshaft and clutch assembly work in perfect synchronization.

Manufactured from billet steel by RAM CLUTCH, a proven name in OEM and aftermarket clutch systems, this flywheel delivers superior strength and durability compared to cast iron alternatives. The 157-tooth ring gear count is the industry standard for small-block Ford applications, providing reliable starter engagement across the full RPM band. Billet construction eliminates casting porosity and inherent weak points, while the external 28-ounce balance weight accommodates externally balanced crankshaft designs common in many SBF builds. The compact footprint (14.6 x 1.7 x 14.6 inches) and measured weight of 28.75 pounds make installation straightforward on both stock and modified engine configurations, and the precision machining ensures runout tolerances necessary for smooth engagement with your chosen clutch assembly.

This flywheel is ideal for small-block Ford (SBF) engine platforms with externally balanced rotating assemblies—a common configuration in 302, 347, 363, and 408-cubic-inch builds. If you're converting from cast iron to billet, verify your crankshaft's existing balance specification; mismatched balance weights between flywheel and crankshaft will cause vibration and accelerated bearing wear. Professional installation is recommended to ensure proper bolt torque, surface cleaning, and alignment. The RAM CLUTCH 1527 pairs seamlessly with compatible RAM pressure plates and disc assemblies, making it an excellent choice for builders who demand consistency and long-term durability in demanding driving conditions or racing environments.