Forged from 8620 steel, heat-treated then shot-peened for additional strength and durabilityRocker arms have .75" long bushings instead of the .50" long bushings found on most other rocker...
Machined from 4140 forged steel and heat treated for maximum strengthFeature the exclusive .750" long S&S rocker arm bushing which provides 50% more load bearing surface than stock .500"...
Machined from 4140 forged steel and heat treated for maximum strengthFeature the exclusive .750" long S&S rocker arm bushing which provides 50% more load bearing surface than stock .500"...