Stage 1 Thumpr Camshaft LS 4.8L/5.3L/6.0L Trucks

Camshaft – Thumper NSR Stage 1 – Hydraulic Roller – Lift 0.541 / 0.530 in – Duration 272 / 291 – 111 LSA – 1800 / 6500 RPM – GM LS-Series – Each