JIMS® now offers Roller Rocker Arms in a 1.745 rocker ratio JIMS® 1.745 ratio rockers are designed to work with JIMS® other valve train components and function with JIMS® total valve train system. Cast from 4340 chromoly and then heat treated for maximum strength. Designed to be used with JIMS® No.17611-83 Rocker Arm Shafts or equivalent. For a custom valve train set up where a super high lift is required, using a small lift cam, this 1.745 ratio rocker allows the engine builder to achieve more lift at the valve. for All Buell models ( not 1125 ), and Xl engines

NOTE: These rockers are not a bolt-in roller rocker. They are designed to be installed by the most advanced engine builder. Modification to the heads and rocker boxes may be necessary to install these rockers.

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