LS .660" Dual Valve Spring Kit with Premium Polished Springs & Titanium Retainers (Discontinued See VSK143803)

LS Premium .660" Polished Double Spring Kit With Titanium 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, titanium retainers, valve locks, spring seats and valve seals.

Spring specs:

155 lbs @ 1.780"
380 lbs @ 1.180"
400 lbs @ 1.130"
coil bind @ 1.070"