I have a SPEC Stage 3 clutch FS for a LS-1. I installed it to go behind my 383, but the 383 never left the driveway. I'm now building something larger and will need more clutch. The clutch/pressure plate is basically new. 0 miles. It only moved the car up and down my driveway enough to let me know it worked. Maybe 3 back and forths up the drive, which is about 50 ft. Clutch is $439 new, will let go for $325 shipped. It's out and ready to go.