JIMS Roller Rocker Arms — Set of 4, front and rear – 66-84 Big Twin, 80, 83-84 Touring, 82-83 FXR

Designed to reduce friction and increase top-end horsepower, these roller rocker arms are cast from 4340 heat-treated chromoly steel. ⚙️🇺🇸

• Cast from 4340 heat-treated chromoly steel
• Reduce friction in the valve train, providing more horsepower and less heat in the top end
• Include 660 bronze bushing fit to .0007" - .0012" for the best wear resistance and oil control
• Roller tip made from bearing-grade material to reduce valve guide wear and valve tip galling
• Segmented parabolic pushrod cup reduces friction at pushrod ends, while putting the load on the outer perimeter with full oil pressure at the pushrod tip
• Set includes two each front and rear rocker arms
• Made in the U.S.A.

Precision-ground components and robust materials ensure long service life under high-load conditions.