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The COMP Cams Stage 2 Thumpr master camshaft kit is built for GM LS Gen III 4.8–6.0L engines to deliver an aggressive idle and added midrange torque for modified trucks. The master kit includes camshaft, lifters, timing set, pushrods, LS6+ springs, retainers, locks, spring seats and valve seals to simplify installation. This package targets sound and drivability improvements while supplying required supporting components.
COMP Cams Stage 2 Thumpr 226/237 Master Camshaft Kit GEN3 LS 4.8/5.3/6.0L
