please answer this diffecult question!
If you look at it like this, the stock flywheel is keyed to fit one way, if the heavy or light area on the stock flywheel is at 12 o clock position, and the new flywheel has the same spot at 6 oclock, you're going to get a vibration that wasn't there before (and that could depending on the severity of the imbalance) damage the engine
Think of it like a wheel, if the wheel is not balanced it's going to vibrate driving down the road, same thing for the flywheel
They balance the flywheel by either removing or adding material to the outer diameter much like they add weight to a wheel to balance it
If you look at it like this, the stock flywheel is keyed to fit one way, if the heavy or light area on the stock flywheel is at 12 o clock position, and the new flywheel has the same spot at 6 oclock, you're going to get a vibration that wasn't there before (and that could depending on the severity of the imbalance) damage the engine
Think of it like a wheel, if the wheel is not balanced it's going to vibrate driving down the road, same thing for the flywheel
They balance the flywheel by either removing or adding material to the outer diameter much like they add weight to a wheel to balance it

I read a post somewhere about a guy with a mustang whose flywheel came off, went through the bellhousing, through the tranny tunnel, through the dashboard, and through the windshield.....
Trending Topics
LT1 enginges are externally balanced. The flywheel/pressure plate assembly should be balanced to match the old assembly. From what I've been told the crank has locating dowels that prevent the flywheel from being assembled in the wrong position.
The Best V8 Stories One Small Block at Time


