Jims Rocker Arm Bushings - Big Twin/Xl 17428-57K

The lightest rocker arm available, but still has superior strength characteristics due to its designThe strength of 660 bronze bushings and bearing-grade steel for the roller tipExtensively tested...

Cast from 4340 heat-treated chromoly steelReduce friction in the valve train, providing more horsepower and less heat in the top endInclude 660 bronze bushing fit to .0007" - .0012" for the best wear...

Made in the U.S.A.

This precise line reamer is capable of a 24 finish or betterUse to ream rocker bushings to a factory fit of .0007” - .0012” in line with each otherMade in the U.S.A.