551216-KN30 Knock Sensor Brackets Compatible with GM LS | Billet Aluminum Knock Sensor Brackets Compatible with GM LS Gen III Engines LS1, LM7, LR4, LQ4, LS6, L59, LQ9. Universal Compatibility: Fully compatible with all LS Gen III harnesses and Gen III knock sensors, these brackets are designed to fit a wide range of engines including LS1, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and L33.
