LS. 660 Dual Valve Spring Kit Steel Retainers 4.8 5.3 6.0 LS1 LS2 LS3 SK001 USA
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. Locators for Stock Guides. 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 heads with approximately. 045 of spring shim (part numbers SS015 and SS030). This kit will NOT fit LS9 engines, please use part number SK006 for LS9 heads. Engine Type: Gen III/IV.
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