Sold per pair. Easy access to bolts for in-frame installation and removal. Clearanced for high lift cams and roller rockers. Sportsters 84 to 92 Big Twin . Releaved for easy carb access.
Increased rigidity ensures accurate valve timing.
Sputhe now has a version available for all Evolution Sportsters and Big Twins. All Sputhe Rocker Boxes feature integral spindle towers for maximum rigidity. Sputhe Rocker Boxes are machined from solid 6061-T6 billet aluminum and are show polished. An improved air oil separator PVC system for high performance 5-speed Sportsters and 1993 and up Big Twins. Can also be used to upgrade earlier engines.