Rocker balls, set of 16, 7/16 stud

Here is a truly unique offering from Cobra Automotive.  These OE style rocker balls are made from 8620 alloy steel, machined with oil grooves, heat treated to Rockwell 68 hardness and, finally, a special friction reducing treatment is applied.  All in an effort to extract the most reliability out of stock style valve train components used with modern cams and valve spring pressures.