The Supertech manganese bronze oversize valve guide set for BMW S38 engines fits 7mm valve stems with an oversize outer diameter of 12.065mm and is supplied as a set of 12. These oversize guides are cataloged for S38 applications where enlarged guide bores are required during head work and come as a complete set to service all cylinders on compatible engines.
Supertech BMW S38 Manganese Bronze Int/Exh Valve Guide 7mm Stem Oversize OD 12.065mm - Set of 12