The 354 poly V8 was used in the US Chrysler Windsor (2-bbl) in 1957 (C75-1) and 1958 (LC-1), and in the US Chrysler Saratoga (4-bbl) in 1957 (C75-2) and 1958 (LC-2).
In Canada the 354 poly came as a 2-bbl on the 1957 Chrysler Windsor (C75-2), 1958 Dodge Custom Royal (LD-3), 1958 DeSoto Firedome (LS-2) and 1958 Chrysler Windsor (LC-2). The Canadian LD-3 version put out 275 bhp, LC-2 was 290 bhp and LS-2 295 bhp. Everything but the carburetor on the DeSoto was shared by all three. The differences were all the work of the advertising people.