I was concerned about that as well Richard, for what its worth I contacted EXEDY about their SFI flywheels and clutches and their response is that the LS flywheel must pass an 18,000 rpm load and burst test and the flywheels 13,000 rpm. For what that's worth. I wonder if the LSA Camaros and CTV's have a special flywheel and clutch assy.