watch battery looking thing on top of retainer
 

popped some rockers and was cleaning up the head and found 3 little watch bettery looking pieces that belong on the top of the retainer. the bottom retainer of the 2 has a little notch on it as well. 4 are missing and i only found 3 but i was wondering if these are keepers or something else and where i can find ones for stock retainers

Those would be shims and the ones with slit in them is the rocker guide....find them they are needed

ah i see, thankyou very much for your help :)

ohhhhhhhhhh nooooooooooooo