Product details:

Made of highest quality spring wire and precision wound to close tolerances, our Sure Seat Valve Spring sets are for use on original equipment heads when installing Edelbrock Performer-Plus, Performer RPM and Torker-Plus camshafts. These are the same high-performance springs used on Edelbrock Performer and RPM cylinder heads. The No.5900 Series valve springs are designed for use with OEM valve rotators. Valve Spring Kits are complete kits that contain non-rotator valve springs, valve spring retainers and matching valve stem locks. Made of highest quality spring wire and precision wound to close tolerances, our Sure Seat Valve Spring sets are for use on original equipment heads when installing Edelbrock Performer-Plus, Performer RPM and Torker-Plus camshafts. These are the same high-performance springs used on Edelbrock Performer and RPM cylinder heads. The No.5900 Series valve springs are designed for use with OEM valve rotators. Valve Spring Kits are complete kits that contain non-rotator valve springs, valve spring retainers and matching valve stem locks.