Texas Speed 199-ISSPACPOL660SpringKit .660" Dual Valve Spring Kit for Chevrolet Gen III IV 5.3L 5.7L 6.0L LS EnginesKit Contents American Made PAC Racing Polished Dual Valve Springs Rated to . 660" Lift Patent Pending Precision Race Components Integrated Seat Seal for Dual Valve Springs Titanium Retainers Texas Speed & Performance is proud to offer the latest version of the best dual valve spring kit on the market! This kit now includes our patent pending Precision Race Components integrated seat and seal. You no longer have to worry about special installation
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Texas Speed 199-ISSPACPOL660SpringKit .660" Dual Valve Spring Kit for Chevrolet Gen III IV 5.3L 5.7L 6.0L LS Engines