Exhaust manifold assembly

Claim 1

A universal exhaust gas manifold assembly comprising: A. an exhaust duct assembly comprising, 1. a face plate having a joining surface, 2. a plurality of gas ducts on the side opposite said face plate joining surface and 3. means forming openings in said face plate from said gas ducts, and B. an elongated cast metal gas receiver having 1. an internal cavity extending lengthwise thereof for receiving exhaust gases, 2. a joining surface extending along the side of said receiver and conforming to said face plate joining surface i. said surface having means forming at least one longitudinal opening therein which is in communication with said cavity, and ii. which is aligned to receive gas from two or more of said gas ducts, whereby said gas receiver may be connected to any one of a number of face plates having varying gas duct locations along the face plate for different internal combustion engine configurations; and 3. means forming a cooling jacket cast around said gas receiver internal cavity, said cooling jacket having a plurality of openings on said gas receiver joining surface through which cooling fluid is brought in contact with said face plate joining surface when said face plate is joined to said gas receiver.