E1840P Camshaft Valve Lifters Springs Kit for Chevy Corvette LS LS1 Engine. 585

High Performance Cam, Lifter and Spring Kit for Chevy GM LS V8 Engines without AFM-Active Fuel Management. Includes Lifters and HL2148S Performance Springs. Not compatible with Active Fuel Management (AFM). An AFM delete kit and/or disabling the AFM through the ECM is required. Custom computer tuning required. Intake vacuum may be too low for power […]