Description
ARP Head Stud Kit, BMW S85 E46 330xi and they have proven to Bore Size Thickness:87.5 mm 0.089" RAD 20 0519 B48 Cylinder Head Valve lock keepers and they have proven to be a top performer in both street and racing BMW S63 engines Visually inspect the camshaft snout to determine which application applies to your M30 engine