Part Description
Fits 1984-1999 Evolution Big Twin, 1999-2017 Twin Cam, 1986 to present Evolution Sportster and 1991-2010 air cooled Buell, Stock 1.625 ratio roller rockers, set of four
Text excerpt from the catalog:
Precision manufactured roller rocker arms, made by Jims in the USA. The 1.625 ratio can also be used to replace OEM 17360-83 and 17375-83. The 1.7 ratio is for a custom valve train set up, where a super high lift is required. Roller rockers improve valve train geometry and efficiency. They always must be installed with adjustable push rods. Rocker shafts and push rods must be ordered separately.
