Mercruiser 807078T10 ceramic coated manifold. Fits big block Mercruisers from 1983-present. 7.4-Liter (454 CID) and 8.2-Liter (502 CID). Replaces older part numbers 89011A8, 807078A2, 807078A4, 807078A6 and 807078T09. Includes manifold to head gasket and 90° water connection only. Order riser gaskets and mounting hardware as needed. Ceramic coated for longevity in salt water enviroment. Orginal equipment made by Mercruiser. 1-year limited warranty.