Big Block log style exhaust manifolds fittment in A body.?

I have a Duster that Im finishing a 440 for. I met a nice guy whos late father collected Mopar, hell sell me the 2203262 and 2205898 log looking manifolds for $160. My biggest question is do these work in A bodies? Are these 426 manis? I hear different opinions. Im thinking thats a very fair price. Hes throwing in some 67-76 a body exh manifolds too for $40. Thanks for the clarification!