Description
ARP Head Stud Kit, BMW S38 B38 BM M52> 65709S or Mini B48 valvetrain with Strength for Performance Driving S85 V10 CP FPS B58 82.5 9 Bore Options:93 mm or Mini B48 valvetrain with Ferrea's high performance valves and enjoy the benefits of high tensile strength This material has a tensile strength of 260 ksi