Billet Alum Flywheel SBC & BBC Int Bal 153t

The Billet Alum Flywheel SBC & BBC Int Bal 153t from RAM CLUTCH is purpose-built for small-block and big-block Chevy V8 engines requiring precision internal balance and reliable clutch engagement. This aluminum flywheel is engineered for high-performance street and drag racing applications where weight reduction and consistent clutch feel are critical. Designed as a direct replacement for stock cast-iron units, it delivers the strength of billet construction without unnecessary rotational mass that compromises acceleration and engine response.

Built from 6061-T6 billet aluminum, the flywheel weighs just 14.1 pounds and features 153 teeth for reliable starter engagement across all RPM ranges. The internal balance design eliminates the need for external balance weights, simplifying installation and allowing seamless integration with internally balanced crankshafts—a critical consideration when transitioning from cast-iron to aluminum construction. Its replaceable friction surface and 2-piece seal design extend service life and simplify maintenance, while SFI 1.1 certification ensures it meets sanctioning body safety standards for organized competition and street performance use.

This flywheel is ideal for engine builders and performance enthusiasts upgrading naturally aspirated or supercharged small-block and big-block Chevrolet V8s. It pairs well with modern performance clutches in both manual transmission street cars and dedicated track vehicles, where its reduced inertia noticeably improves throttle response and shift feel. Compatible with 2-piece seal applications and internally balanced crankshaft assemblies, installation requires verification of your engine's balance specifications and clutch system requirements to ensure optimal performance.