GM 3.7L Oil Pan Gasket Set | Sierra 18-4366 Zinc Pencil Anodes the blades are actually stronger

the blades are actually stronger than traditional aluminum

Prevents engine knocking

The Barr Marine FM-1-83 manifold boasts a precise construction that optimizes engine efficiency by reducing back pressure

Magnesium anodes will become very active in salt water

smooth operation

GM 3.7L Oil Pan Gasket Set | Sierra 18-4366 Zinc Pencil Anodes the blades are actually strongerGM 3. 7L Oil Pan Gasket Set Sierra 18 4366 Multiple piece oil pan gasket set fits Mercruiser model 470 marine engines. For Mercruiser 3. 7L 224 CID model 470 All oil pan side gaskets and end seals or molded one piece gaskets required to seal one engine Replaces Mercruiser 27 72479, 27 72479T, 27 72479A5