Edelbrock 16- Retainers Perf RPM 440 60189 60929 Heads - 9644

These retainers are designed to be used with springs featuring 1.55" O.D. and 1.125 I.D. The valve stem size needed for this retainer to work properly must be 11/32" and 7- degree locks are required also.

Whether its for a full rebuild or some standard maintenance, the proper engine components are needed to make sure your vehicle is running smooth.

Upgrading your valve springs and retainers is the best way to help your car rev higher. If you are looking to increase the horsepower of your engine, your may have considered rebuilding the head. When rebuilding your engine's head, we recommend upgrading your valves, and springs. This will increase airflow and the RPM of your engine.

Founded in 1938, Torrance-based Edelbrock, LLC is recognized as one of the nation's premier designers, manufacturers and distributor of performance replacement parts for the automotive aftermarket. Edelbrock produces their core products in the United States of America using state-of-the-art equipment in their world class manufacturing facilities. Edelbrock, LLC encompasses five locations in Southern California and one location in North Carolina totaling more than 500,000 square feet.