515-778 Stens Cylinder Head Assembly compatible with Honda 12210-ZH8-415

515-778 Stens Cylinder Head Assembly.  Includes valves already installed, valve springs, rocker arms, keepers, exhaust studs, nuts and head.  Compatible with Honda 12210-ZH8-020, 12210-ZH8-405, 12210-ZH8-415.  Fits MOST GX160 engines; FC600 tillers; EB2500, EG2500, EM1800 and EM2500 generators.  Verify OEM part number by referring to engine model and spec – does not fit all applications.  Not compatible with greater than 10 percent ethanol fuel.