Gen 5 LT4 660" Dual Valve Spring Kit with Premium Polished Springs & Titanium Retainers

Gen 5 LT4 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:

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