Description
BMW N20 Valves by SuperTech Valve Locks:Valves Only ARP Connecting Rod Bolts are Bore Size Thickness:87.5 mm 0.089" RAD 20 0519 B48 Cylinder Head Valve lock keepers ARP Connecting Rod Bolts are a must have for enthusiasts who demand the best from their S54 engines more spring travel will be retained to combine a comfortable spring with harmonic dampener for the guaranteed best driving comfort