COMP Cams Camshaft & Lifter Kits MK54-331-58 COMP Cams adds a new GM LS 4.8L turbo application to its popular LST (Low Shock Technology) cam series thats optimized for high RPM power production and boost response. COMP Cams LST Camshaft Kits for GM LS applications take the guesswork out of choosing the right valve train upgrade package for your specific engine and desired performance. Low Shock Technology camshafts feature lobe profiles designed to maximize horsepower, while improving stability at higher RPM. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. Stage 2 LST (58X) Master Camshaft Kit for LS 4.8L Turbo Engines Perfect choice for 4.8L race-style, low back pressure turbo systems. 7400 RPM stability with CK and MK kits. Comp Cams Stage 2 LST (58X) 225/233 Hydraulic Roller Master Cam Kit for LS 4.8L Turbo Engines