Get rid of those cruddy old oem valve cover bolts and washers and step up to a new, shiny stainless steel bolts with countersunk super fancy washers and nylon protectors.
Here are pics of the hardware installed on a RB30/26 build.
H
Hans Scheibe
Always surpasses my expectations
The OG valve cover hardware is top notch and affordable as well. Definitely a very nice option over reusing tired old Phillips head hardware and 30 yr old cracked rubber bushings. Really helps with the fine detail of an RB build.