Engines Covered: - 3.6 litre (3565 cc) V6 "Alloytec" V6 (VZ models) - 3.8 litre (3791 cc) V6 "Ecotec" (VT to VY Series II models) - 3.8 litre (3791 cc) supercharged "Ecotec" V6 (VT to VY II Series models) - 5.0 litre (4987 cc) V8 (VT Series I models) - 5.7 litre (5667 cc) "Gen III" V8 (VT Series II - VZ Series I models) - 6.0 litre (5967 cc) "Gen IV" V8 (VZ Series II models)