High-quality spring retention.
Crane's rugged steel valve spring retainers are made from high-quality steel bar stock. They are heat-treated for maximum strength and durability, and black oxide coated for corrosion resistance. They feature a 7 degree taper, and they are compatible with either Crane's stamped valve stem locks or their machined steel locks.
Valve Spring Retainers, Steel, 7 Degree, 1.630 in. Outside Diameter, .635 in. Inside Diameter, Set of 16