Spec GM F40 Aluminum Flywheel

This aluminum flywheel from Spec is engineered as a lightweight replacement for vehicles equipped with the GM F40 manual transmission, designed to reduce rotating mass and sharpen engine response. By using a precision-machined aluminum construction, it targets quicker revs, crisper throttle transitions and more immediate clutch engagement for performance driving and track use. The component complements clutch upgrades and high-performance drivetrains where reduced inertia and reliable operation with the GM F40 transmission are desired.