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 Engine Management System this kit is tuned to

this kit is tuned to sharpen handling

heavy-duty work trucks

allowing you to fine-tune the suspension depending on driving conditions

allowing for maintenance and customization without replacing the entire setup

Unlike the bulky factory front crossmember

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 Engine Management System this kit is tuned to. 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