Some years are the same and some are different, even the 6.0L has the LS1 cam in it, you can check out the reference area for more info:

Vehicle Part Number Valve In Valve Ex Duration Ex Duration IN Lobe Sep Timing

1997 LS1 Y-car 12554710 0.479 0.472 207 199 117 113/121
1998 LS1 Y-car 12554710/12560964 0.479 0.472 207 199 117 113/121
1999 LS1 Y-car 12560964 0.479 0.472 207 199 117 113/121
2000 LS1 Y-car 12560968 0.5 0.5 207 198 115.5 112/119
2001 LS1 Y-car 12561721 0.479 0.467 207 196 116 117/115
2002 LS1 Y-car 12561721 0.479 0.467 207 196 116 117/115
2003 LS1 Y-car 12561721 0.479 0.467 207 196 116 117/115

2001 LS6 Y-car 12560950 0.525 0.525 211 204 116 114/118
2002 LS6 Y-car 12565308 0.551 0.555 218 204 117.5 115/120
2003 LS6 Y-car 12565308 0.551 0.555 218 204 117.5 115/120

1998 LS1 F-car 12557812/12560965 0.5 0.5 209 198 119.5 117/122
1999 LS1 F-car 12560965 0.5 0.5 209 198 119.5 117/122
2000 LS1 F-car 12560965 0.5 0.5 209 198 119.5 117/122
2001 LS1 F-car 12561721 0.479 0.467 207 196 116 117/115
2002 LS1 F-car 12561721 0.479 0.467 207 196 116 117/115

2001 LS1 V-car 12560965 0.5 0.5 209 208 119.5 117/122
2002 LS1 V-car 12560965 0.5 0.5 209 208 119.5 117/122
2003 LS1 V-car 12560965 0.5 0.5 209 208 119.5 117/122

1999 LR4 12560966/12560967 0.466 0.457 190 191 115.5/114 118/113 112/116
2000 LR4 12560967 0.466 0.457 190 191 114 112/116
2001 LR4 12560967 0.466 0.457 190 191 114 112/116
2002 LR4 12560967 0.466 0.457 190 191 114 112/116
2003 LR4 12560967 0.466 0.457 190 191 114 112/116

1999 LM7 12560966/12560967 0.466 0.457 190 191 1115.5/114 118/113 112/116
2000 LM7 12560967 0.466 0.457 190 191 114 112/116
2001 LM7 12560967 0.466 0.457 190 191 114 112/116
2002 LM7 12560967 0.466 0.457 190 191 114 112/116
2003 LM7 12560967 0.466 0.457 190 191 114 112/116

2003 LM4 12560967 0.466 0.457 190 191 114 112/116

1999 LQ4 12560967 0.466 0.457 190 191 114 112/116
2000 LQ4 12560967 0.466 0.457 190 191 114 112/116
2001 LQ4 12561721 0.479 0.467 207 196 116 117/115
2002 LQ4 12561721 0.479 0.467 207 196 116 117/115
2003 LQ4 12561721 0.479 0.467 207 196 116 117/115
2002 LQ9 12561721 0.479 0.467 207 196 116 117/115
2003 LQ9 12561721 0.479 0.467 207 196 116 117/115