Part Type: Fuel Injection Throttle Body Cover Gasket. 2003 Lincoln LS Engine: 3.9L V8; Spacer to manifold; Position: Rear;. 2004 Lincoln LS Engine: 3.9L V8; Spacer to manifold; Position: Rear;. 2006 Lincoln LS Engine: 3.9L V8; Spacer to manifold; Position: Rear;.