Ford Small Block Valve Cover Gasket Set | Fel-Pro 17945 Seals valve covers to cylinder heads on Ford 302 and 351 cu. in. marine engines. For Ford 289, 302, & 351 CID small block marine engines Used with stamped steel valve covers All valve cover or push rod cover gaskets required to seal one engine Replaces Mercury 27-56173 Replaces OMC 3852818 Replaces Pleasurecraft Marine RM0039 Replaces Volvo Penta 3852818