ARP Head Stud Kit, BMW M20

The M20 B20, B23, B25, B27 is a 6-cylinder engine that was used in a variety of BMW models, including the E12, E21, E28, E30, and E34 3 Series, 5 Series, and 6 Series, among others. Installing ARP head studs 201-4305 on a BMW M20 engine can provide several benefits, including increased clamping force and improved head gasket sealing, which can help prevent head gasket failure. This is particularly important on high-performance or turbocharged engines, where the increased cylinder pressure can put additional stress on the head gasket and bolts. When installing ARP head studs on a BMW M20 engine, it's important to follow the manufacturer's instructions carefully and use the proper torque specifications and sequence. It's also a good idea to have the cylinder head and block checked for flatness and resurfaced if necessary, to ensure a proper seal. Please note: After initial assembly, it is necessary to allow the engine to complete a full heat cycle, then re-torque your head studs to spec.