LS Premium .660" Polished Dual Spring Kit with Steel Retainers

LS Premium .660" Polished Double Spring Kit With Steel Retainers. This valve spring kit is excellent for high performance or racing use for up to .660" lift using stock rocker arms. This kit includes valve springs, steel retainers, valve locks, spring seats and valve seals.

Spring specs:

160 lbs @ 1.780"
425 lbs @ 1.150"
435 lbs @ 1.130"
coil bind @ 1.070"