McLeod 463456 for Ford 4.6/5.4L Mustang Lightened Steel Flywheel. McLeod steel flywheels are perfect for street applications where easy stop light acceleration is desired. Steel flywheels come in various weights and dimensions. For race applications, a heavier steel unit is ideal for helping launch a heavy car with a smaller engine with less torque and horsepower. They are CNC machined from billet alloy steel and have 1045 hardened steel ring gears. McLeod Racing Billet Steel flywheels is the best choice for customers that want a dependable good quality steel flywheel. Made from Billet steel the McLeod Racing flywheels are SFI rated to almost 9000 RPM.