The Supertech beehive valve spring set for the BMW S65 V8 is specified with an 18.7mm outer diameter and supplied as a set of 16 springs. These beehive-style springs are provided to cover an entire engine bank and facilitate valve train assembly. This set contains sixteen beehive springs sized to 18.7mm OD for S65 V8 applications.
Supertech BMW S65 V8 18.7mm Outer Dia Beehive Spring - Set of 16