Flywheel Ultra Light GM LS LT LSA 8 Bolt

The Flywheel Ultra Light GM LS LT LSA 8 Bolt by UNICLUTCH is engineered for serious enthusiasts and mechanics building high-performance LS and LT engine platforms that demand reduced rotating mass and faster engine response. This ultra-lightweight flywheel replaces heavy OEM cast iron units, cutting rotational inertia that directly impacts throttle response, acceleration feel, and overall drivability in street, strip, and track applications. If you're upgrading a Corvette, Camaro, Silverado, or custom LS-powered chassis, a lighter flywheel transforms how the engine feels behind the wheel.

Weighing just 16.032 lbs, this UNICLUTCH flywheel reduces engine mass by up to 40–50% compared to factory iron units, delivering quicker spool-up, sharper rev transitions, and improved fuel economy under light throttle. The 8-bolt configuration matches all modern LS-family and newer LT engines, ensuring precise fitment without modification. UNICLUTCH uses premium-grade ductile iron with CNC-machined surfaces to maintain OEM-level runout tolerances and durability while shedding unnecessary weight—critical for street use where thermal cycling and repeated clamping loads demand material integrity that aluminum flywheels cannot guarantee.

This flywheel pairs seamlessly with modern and modified clutch systems, from stock applications to performance pressure plates and specialty friction materials. Mechanics installing this unit on turbocharged or supercharged platforms benefit from the lighter mass aiding quicker turbo spool and reduced parasitic drag at idle. Installation is straightforward—standard engine removal and flywheel replacement procedure—and no special tools or modifications are required for GM LS, LS-based, or LT-powered vehicles with the 8-bolt bell housing pattern.