LS Throttle Body Adapter / LS3 4 Bolt Intake to LS1 3 Bolt TB With Gasket DBC 551511XG 4-Bolt Intake to 3-Bolt Throttle Body 3-Bolt Cable Throttle Bodies Only 75mm Natural Finish Aluminum Includes: Adapter Plate, Bolts, Gasket, O-Ring Seal Does not work with 3 bolt drive by wire throttle body or LS4 intakes