Fidanza 61-63 Austin Healey Sprite Aluminum Flywheel

The billet 6061 T6 aluminum body of this Fidanza flywheel is about 40-60 percent lighter than the stock unit. This significant weight reduction means less rotational mass, which helps the engine rev more freely. You'll notice quicker acceleration and a more responsive throttle, especially when you're rebuilding the engine or upgrading the clutch system.

Fidanza builds these flywheels with a heat-treated friction plate designed for solid grip and long wear. The ring gear is made from hardened 1050 steel and can be replaced if needed, which is a nice touch for serviceability. They also use military-spec fasteners, so you know they're built for reliability. The lower MOI (moment of inertia) contributes to that faster throttle response you're looking for.

This flywheel is designed as a bolt-on replacement, and most applications include stepped dowels to ensure proper alignment. It's a well-built component that can make a noticeable difference in how your Sprite feels when you get on the gas.