Sierra 18-0465 Intake Manifold Gasket SetSierra replacement intake manifold gasket set for Mercruiser and OMC stern drives.Fits: GM 454 CID Engines, 325, 330, 340, 350 HP and 454 Magnums, 7.4LInterchangeable with: GLM; 39170; Mallory; 9-61201; Mercruiser Stern Drive; 27-65184; 27-8M0050224; OMC Inboard; 352670;