Re: Light Weight crank pulley and flywheel question.
 

Stock crank pulley.

Re: Light Weight crank pulley and flywheel question.
 

gotcha

Re: Light Weight crank pulley and flywheel question.
 

I prefer/recommend the ACT chromoly flywheel, stronger than aluminum. I've got the 8.5lb flywheel with ACT clutch and a unorthodox racing underdrive pulley. Works great. Maybe not recommended for longevity, but who cares, D-series are cheap or free.

Re: Light Weight crank pulley and flywheel question.
 

Couldn't of said it better myself. I bought a lightweight crank pulley for my LS build up since the stock one was cracked and had chunks missing on some of the ribs. Plus it's shiney so it's coo. 8)

Re: Light Weight crank pulley and flywheel question.
 

I run a lightend stock pully and flywheel. I bought both from a guy who worked at a machine shop. They both ended up weighing about half as much as stock. The flywheel I sent out to have balanced just in case. Ive been running both on all my D's for the past 3 years and never had a problem.