Dual Spring Kit .660" 660 Steel Titanium Retainers for Chevrolet Camaro Corvette for LS1 LS2 LS3 LQ4 LS4 LS6 L76 L92 L99 LQ9 L33 LSA LS 140H Anodized Finish for Strength and

Anodized Finish for Strength and Durability

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Dual Spring Kit .660" 660 Steel Titanium Retainers for Chevrolet Camaro Corvette for LS1 LS2 LS3 LQ4 LS4 LS6 L76 L92 L99 LQ9 L33 LSA LS 140H Anodized Finish for Strength and. 660" Dual Valve Spring Kit Steel Retainers 4. 8 5. 3 6. 0 LS1 LS2 LS3 . 660" Lift Dual Spring Kit for LS engines using stock rocker arms. Kits ship standard with dual polished springs, locks and the following: Chromoly Steel Retainers Locators for Stock Guides (. 505" ID . 060" Thick) Black Valve Seals Spring 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