Is a '69 AMX considered a mopar A-body?

Looking at a possible next project. I don't know alot about AMX. But am intrigued of its history. The 390 is gone. Now has a 360. (Which also confuses me. How come a Mopar SB where a mid Ford once sat?)

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That red car is kick ***, I used to watch one run in the bigger races in superstock, it would stand on its *** and hold them up there like a mopar , ran dam good too !