The Sierra 18-1953-2 Manifold fits MCM/MIE GM V8 (305, 350, 377 CID) Engines 1983-2002. The manifold is supplied with gaskets and will fit port and starboard applications. It is ideally suited for freshwater applications. Interchangeable with the following part numbers: Barr MC-1-87114, GLM 51230, HGE 7114, Mallory 9-40507, Marine Power 0994-100, Mercruiser Stern Drive 860246A10, 860246A15, 860246A3, 860246A7, 860246A9, 860336A2, 860337A2, 87114A19, 87114A30, 87114A8, Osco 7114B2.