If you have ever had trouble breaking or flipping lash caps which can lead to dropping a valve, Wesco has solved the problem with there valve keeper lash caps.
Locks are made from billet heat treated steel and combine two parts in one with the keeper and lash cap being made into one making it very difficult to flip a lash cap off.
These fit with all cylinder heads that use an 11/32" valve but racer must specify square or bead lock. Tip length is .250" and lock caps are designed for seven or ten degree valve keepers.
Lash caps are sold individual in one pair. Racer can pick lock type from drop down menu.