Engine Cylinder Head 351 Ford OEM # 9495913

Sierra 18-4496 Cylinder Heads All cylinder heads are new castings and complete assemblies with new- stainless steel valves, hardened steel exhaust seats, valve springs, valve locks, and retainers. All GM cylinder heads utilize high performance screw-in rocker arm studs in place of factory press in rocker arm studs. MerCruiser 949-5913,949-6560, OMC 986085,987970,3858868, Volvo 3854214,3858867 Fits: (1980& Up) 5.8L Ford with D-shape 58 cc combustion chamber OEM Interchange: MERCURY MARINE: 949-5913 MERCURY MARINE: 949-6560 OMC: 3858868 OMC: 986085 OMC: 987970 VOLVO: 3854214 VOLVO: 3858867