valve spring retainers - chromoly - M10 single or dual springs Upgrade/Performance/Race High-strength Chromoly steel valve spring retainers, these fit both single and dual springs. While not as light-weight as the titanium, these are perfect (higher strength and durability over OEM) for a street-performance/hotrod engine build. Price: $59.19   Quantity to Add:   CONTACT US AT BMWSALES@2002AD.COM 1-800-4-2002AD 909-629-1955 outside of the USA COPYRIGHT © 2002 AD, ALL RIGHTS RESERVED.