The Subaru EJ engine is a series of four-stroke

ensuring optimal valvetrain efficiency and engine power output

Valve breakage can result in catastrophic failure as valves drop into the combustion chamber

Centerless ground shaft made from hardened Chromoly

The ARP 201-4303 head stud kit is custom-designed for the BMW S54 inline 6-cylinder engine and serves as a replacement for the BMW head bolts 11127831862 commonly found in E46 M3 and E36/7 Z3 M Roadster

BMW M50 M52 S50 S52 Head Gasket & Head Stud Kit Head Gasket Type - Bore - Thickness:MLS - 87 mm - 0.140" The Subaru EJ engine isPerformance Head Gasket & Head Stud Kit for BMW M50 M52 S50 S52 Designed for high performance BMW M50, M52, S50, and S52 iron block engines in E34 and E36 chassis, this kit provides a reliable solution for boosted and high horsepower applications. Customers can choose between Cometic MLS or Athena SCE Cut Ring head gaskets and ARP2000 or Custom Age 625+ head studs, depending on their performance needs. Head Gasket Options Cometic MLS Head Gasket Ideal