Fidanza Aluminum Flywheel - 212mm - 4A-GEFidanza Aluminum Flywheel 212mm for 4A GE Engine An aluminum flywheel is the easiest and most ecomomical way to increase a car's performance. Average aluminum flywheel weight is 55% less than the factory steel flywheel. This weight difference allows a vehicle's engine to use much more of its available horse power. Fidanza Flywheels are made of the highest quality components 6061 T6 aluminum 1050 high carbon alloy steel friction plates Heat treated