SBF 28oz Ext Balance SFI Flexplate 164 Tooth

The SBF 28oz Ext Balance SFI Flexplate 164 Tooth is a high-performance engine coupling component designed for serious performance builds where reliability and balance are crucial. This flexplate is ideal for builders who demand OEM-quality execution in drag racing, street performance, and competition platforms.

Engineered with an extended-balance design, this SFI-certified flexplate optimizes rotating mass distribution for specific engine stroke and balance characteristics. The 164-tooth ring gear engagement ensures positive starter motor contact and repeatable cold-start performance, while the SFI certification (SFI 29.1) guarantees safety compliance for sanctioned competition environments.

This flexplate is particularly beneficial for serious engine builders, transmission shops, and performance enthusiasts who are rebuilding stroker engines or hybrid platforms where standard OEM flexplates may not suffice. Its extended-balance geometry accommodates various harmonic balancer specifications and crankshaft counterweight configurations, reducing vibration and minimizing driveline stress during high-RPM acceleration.