Exhaust manifold for OMC 3.0L - BAOMC1-984054

Fits Engines 140HP, 4 cil. 181CID / 3.0L GM (1973-1990) For OMC OMC-1-984054 Direct replacement exhaust manifold for OMC Sterndrive GM 4 Cylinder 140HP 3.0L 181 Cubic Inch engines that used the Rochester 2BBL Carburetor . Replaces OMC part #’s 998083, 980460, 980957 and 982490.Usually 1989 and Earlier. Will not replace the Holley Carbureted exhaust manifold! Manifold includes all plugs, gaskets and mounting hardware to head.