BMW S58 Performance Valve Seat Replacement by 5150 AutoSport E64 M6 Rolls-Royce N74R Applications:

Rolls-Royce N74R Applications:

and excellent drivability—even with aggressive cam profiles

10x 11mm Head Studs

or mounted remotely away from the fuel rail (using Remote Mount Adapter Kit)

BMW S58 Performance Valve Seat Replacement by 5150 AutoSport E64 M6 Rolls-Royce N74R Applications:BMW S58 Performance Valve Seat Replacement by 5150 AutoSport The process of replacing valve seats in a BMW S58 engine begins with the careful machining and removal of the existing intake and exhaust valve seats. At 5150 AutoSport, our BMW experts use precision tools to extract the worn out or damaged valve seats without compromising the integrity of the cylinder head. Once the old seats are removed, new intake and exhaust valve seat bores are machined