Seller notes

For LS LS1 .660" 4.8 5.3 6.0 LSX LS2 LS3 LQ4 LQ9 Dual Valve Spring Kit Steel SetProduct Description: .660" Lift Dual Spring Kit for LS engines using stock rocker arms.Kits ship standard with dual polished springs, locks and the following:Steel RetBlack Valve SealsSpring specs are 155 lbs @ 1.780", 380 lbs @ 1.180", 400 lbs @ 1.130, coil bind @ 1.070" This is a drop in spring kit for all 15 degree LS heads including LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA, etc, this kit will also fit LS7 ...

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