SBF Alm SFI Flywheel 157-Tooth Int Balance

The CENTERFORCE SBF Alm SFI Flywheel 157-Tooth Internal Balance is purpose-built for small-block Ford enthusiasts and professional mechanics seeking reliable, competition-grade rotating assembly components. This internally balanced flywheel is engineered for vehicles where OEM durability meets high-performance demands, whether you're building a street cruiser, weekend racer, or shop-floor project.

The 157-tooth design ensures seamless integration with modern starter systems while maintaining the precision balance required for smooth engine operation under varying load conditions. CENTERFORCE's internal balancing process distributes mass strategically throughout the flywheel to compensate for engine imbalances without requiring external weight additions, reducing vibration and extending drivetrain component life. The SFI certification confirms compliance with racing safety standards, making this flywheel acceptable for sanctioned events and high-rpm applications where safety validation is mandatory.

At 14.95 lbs, this aluminum construction keeps rotating mass minimal compared to cast-iron alternatives, translating to quicker throttle response and reduced engine strain during acceleration and deceleration cycles. The 157-tooth ring gear provides reliable engagement with modern starter motors, preventing grinding and ensuring consistent cold-start reliability. This flywheel is ideal for small-block Ford platforms, including 289, 302, and 351W engines, providing a performance upgrade for enthusiasts and racers alike.