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The COMP Cams Stage 2 Thumpr hydraulic roller cam is specified for Gen‑LV LS 4.8/5.3/6.0L truck engines. Its Thumpr lobe profile produces a characteristic idle lope in modified 5.3L and 6.0L truck builds, requires high‑lift valve springs for safe operation, and necessitates AFM and VVT delete where those systems are present. It’s a camshaft intended for truck V8 applications.
COMP Cams Stage 2 Thumpr Camshaft for Gen LV LS 4.8/5.3/6.0L Truck
