S&S Cycle® 90-4095 - Harley Evo Die-Cast Chrome Rocker Cover Kit (fitment below). Founded in 1958, S&S Cycle® has been providing high performance motorcycle parts for Harley-Davidson® and other v-twin motorcycles for over 55 years. Starting with a simple offering of light weight pushrod kits, the S&S motorcycle performance product line has grown to include exhaust systems, camshafts, carburetors, fuel injection systems, stroker kits, big bore kits, cylinder heads, service replacement parts and complete motorcycle engines for both vintage and modern v-twins. Rocker Cover Kit for Harley Davidson Evolution Motors (90-4095) by S&S Cycle®. Accepts valve springs up to 1.660 OD and.Includes Viton O-rings, all necessary hardware and gaskets required for installation. Fits 80" up to 145" motors. Note: It is the engine builder's responsibility to confirm all operating clearances. Positive O-ring seal ensures leak-free operation. Can be installed with the stock engine in the frame in most applications. Include rocker boxes, gaskets and mounting bolts. Assembler must supply rocker shafts and rocker arms for all rocker boxes. Installation on Buell models requires removal of some material from the front motor mount. FLHTCU Electra Glide Ultra Classic. FLTCUI Ultra Classic Tour Glide. FXDX Dyna Super Glide Sport. Thank you for your business and may you have happy trails from here and forever!