US$237.00-8%US$258.33
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Overview Marine exhaust manifold for 305/351 ci GM marine engines. Key Features - Uniform wall thickness - Unobstructed exhaust passages - Shot-blasted exterior finish - CNC-machined mounting surfaces - Baked enamel coating Fitment Notes For 305/351 ci GM marine engines. Professional installation is recommended. Reference Numbers Interchange: Sierra 18-1997-1; Barr CHV-1-83; Osco 994; GLM 56230; 9-40110
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