Ferrea titanium retainers for Chevrolet big block valve stems, supplied as a set of 16. These retainers fit 0.313-inch valve stems and are intended to secure valve springs when rebuilding or servicing a big block engine. The set quantity is suited to common big block valve counts and provides the specific stem diameter fitment stated in the product description for direct-use applications.
Ferrea Chevrolet Big Block 0.313in Valve Stem Titanium Retainers - Set of 16