SPUTHE BILLET ROCKER BOXES

Sputhe Billet Rocker Boxes For EVO motors ******SOLD****** USED SET As pictured, complete set of Sputhe Rocker Boxes w/ O-Rings Sputhe Inc’s billet rocker boxes and covers for Evolution Big-Twins and Sportsters, CNC machined from solid 6061-T6 billet aluminum and show polished An angled parting line and easy access counter-sunk hold down screws makes for easier, in-frame removal One Neoprene O-ring replaces three leak-prone gaskets in the stock sets (not included) These rocker boxes come with an improved air/oil separator PVC system for high performance 5-speed Sportster and 1993 and up Evo Big Twins Sputhe rocker boxes are much more rigid than stock units Can also be used to upgrade earlier engines to top end breathing Easy access to bolts for in-frame installation and removal Clearanced for high lift cams and roller rockers Fits all Evo Sportsters and Evo Big Twin Relieved for easy carb access Increased rigidity ensures accurate valve timing