Valve Spring Colors
So far I, here is what I have. (Not much):
2001 LS6= Blue (Supposedly only "Blue" work w/any LS1)
2002 LS6= Green
2003 LS6= Yellow
This is all I have. Please help me with all other years, etc.
All the 01 LS6 springs I've seen are blue.
02 and 03 LS6 springs can either be yellow or green.
Any of these springs will fit a LS1 head with a stock retainer and keepers. Whether or not any of these springs will work on a LS1 depends on the cam you are using.






