LS6 valve springs what retainers?

[Mach 5]

I have a 3.1 turbo mpfi and installing a cam. Now I ordered LS6 valve springs and LS1 seats modified to fit my guides. Now, what retainers and locks do I use with this setup? Do I order LS6 retainers/ locks or can I keep the stockers.

-Jarek

[SappySE107]

stock 3x00 retainers and keepers will work, or the manley LS retainers and keepers.

[Mach 5]

thank you