This is the Cylinder Head (without valve assemblies) for the O.S. Max FS-70 Surpass II Four Stroke Engine. The cylinder head bolts to the top of the crankcase and houses the intake and exhaust valve assembly and the glow plug. FEATURES: Replaces damaged intake manifolds. Constructed of aluminum with brass alloy insert valve seats. INCLUDES: One Cylinder Head for the O.S. Max FS-70 Surpass II Four Stroke Engine. One cylinder head gasket. REQUIRES: Installing intake and exhaust valve assemblies, rocker cover, intake manifold and glow plug. Bolting to crankcase with O.S. screw set #45913000 (OSMG8814). COMMENTS: For cylinder head with valve assemblies, use OSMG5215. JXS 4/18/01 ir/jl