Aluminum or steel flywheel

[601HP]

I first drove my 427 in 1994. The engine was and still is 427 cubic inches with a standard stroke crank. The original build used a steel flywheel that weighs 40+ pounds. At the beginning of this Cobra ownership I always thought my engine wound up a little on the slow side when I blipped the throttle for a downshift. I just figured it was normal.

Around the year 2000 I changed the clutch, pressure plate and flywheel. The new flywheel was an over-priced Center Force aluminum unit and weighs about 20 or 22 pounds. What a substantial difference that unit has made. Throttle response is noticeably faster. The engine has felt as though it spools up quicker at full throttle. The aluminum unit is a keeper for my car.

The original steel flywheel is still hanging on the wall in my work shop.

David