Ok, so looking at my username, you'll see that I'm not an ordinary Ecotec guy... I put one in my Fiero.
Long story short, I can't have teeth on my flywheel because of my adapter plate. The Fidanza 7.5lb flywheel is what's in there now, and I had the teeth grinded off, but I need to get a heavier one in there for the time being until I can stabilize the idle better in Megasquirt.
I found this: http://www.crateenginedepot.com/store/Ecotec-20-LSJ-Flywheel-2005-2007-12584343-P2401C229.aspx?UserID=18965841&SessionID=ATHJsTExe9JYcJ27zFEj
If this truly has no teeth, this is what I need to get for the time being... do the LSJ's not have teeth, or is this picture misleading?
Also, do the LNF and LSJ flywheels use the same threading for their pressure plate bolts?
Thanks a ton guys!!!