The valve train experts at Manley Performance have developed two special steel alloy valve spring retainers that are almost as light as titanium, but with greater resistance to wear. They are also great for racing applications where titanium valve train components are not permitted.

For Super 7° applications Manley offers retainers for double valve springs made of proprietary TensileMax™ alloy. These are available in standard, convoluted, and double convoluted designs—which are comparable weight-wise to standard titanium retainers. The material is specially heat-treated to provide a hardness of Rc 52-54 to prevent retainer wear. A unique impingement process improves fatigue strength and promotes an oil film between the spring and retainer.

Applications utilizing a 10° keeper angle are handled with Manley’s new lightweight H-13 tool steel retainers. They are 33% lighter than standard 10° steel retainers and only 2-4 grams heavier than titanium versions. They are heat-treated to a Rockwell hardness of 56.

Manley manufactures both steel and titanium valve locks in 7°, Super 7° and 10° configurations, as well as a variety of steel and titanium valve spring retainers.

For additional information, visit www.manleyperformance.com.