S&S Cycle SS900-4320A Roller Rocker Arm Kit for Big Twin 66-84 * Double wall design for

* Double wall design for added strength

* No need for expensive mounting hardware

• This wheel can be run single or dual disc

Additional ventilation is accessible through the arms with lockable zips on the forearm

Pulley and clutch basket are hard

S&S Cycle SS900-4320A Roller Rocker Arm Kit for Big Twin 66-84 * Double wall design for1966 '84 big twins SH Series engines. S&S rocker arms for shovelhead engines are machined from 8620 steel forgings and heat treated for maximum strength. The forgings are designed to eliminate stress points and provide the strongest, most durable rocker arm possible. These roller rocker arms also feature the exclusive . 750" long S&S rocker arm bushings, with 50% more load bearing surface than stock . 500" bushings. An oil passage from the pushrod cup