Make sure you spec the right 4X cam sprocket...there are 2 from GM, one for a 1 bolt cam and 1 for a 3 bolt cam. If you want it for a 3 bolt cam, order it for something like a 2008 LS7. If you want it for a 1 bolt cam, order a 2010 Camaro LS3 sprocket.
M6 2010 Camaro SS
2005 RCSB 5.3 Z71