Brian Crower Valve Keepers / Locks - K20A K20Z K24

7° billet performance valve stem keepers or locks are designed to fit BC retainers (BC2010 and BC2011). Precision machined from premium billet bar stock chromoly steel and heat treated for maximum strength to insure against shoulder shearing (common with stock and lesser quality brands).

5.5mm Stem, 7° Billet Keepers/Locks set/32 - NOTE: If running late model cylinder head (K20 after 2004), you may need to purchase BC2940 keepers to accommodate BC2010 or BC2011 retainers.